FPUS55 KRIW 201249 ZFPRIW Zone Forecast Product for Western and Central Wyoming National Weather Service Riverton WY 647 AM MDT Mon Apr 20 2026 WYZ020-202200- Natrona County Lower Elevations- Including the city of Casper 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 70s. West winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Mostly clear. Lows around 40. West winds 10 to 15 mph with gusts up to 25 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Partly cloudy. Lows around 50. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy and windy. Highs around 70. Southwest winds 25 to 35 mph with gusts up to 55 mph. .WEDNESDAY NIGHT...Partly cloudy. A chance of rain and snow showers after midnight. Windy with lows in the upper 30s. Chance of precipitation 30 percent. .THURSDAY...Rain and snow showers likely. Little or no snow accumulation. Windy, cooler with highs around 50. Chance of precipitation 70 percent. .THURSDAY NIGHT...Mostly cloudy. Snow and rain showers likely in the evening, then a chance of snow showers after midnight. Little or no snow accumulation. Breezy with lows in the mid 20s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy with snow showers likely. Little or no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Breezy with lows in the lower 20s. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. $$ WYZ017-202200- Wind River Basin- Including the cities of Riverton and Shoshoni 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 70s. Southwest winds around 10 mph with gusts up to 20 mph, becoming west 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Mostly clear and breezy. Lows around 40. West winds 15 to 20 mph, becoming southwest around 10 mph after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Windy with highs in the upper 60s. Southwest winds 20 to 30 mph with gusts up to 45 mph, increasing to 30 to 35 mph with gusts up to 55 mph in the afternoon. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers. A chance of snow showers after midnight. Windy with lows in the upper 30s. Chance of precipitation 30 percent. .THURSDAY...Mostly cloudy with rain and snow showers likely. A slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the lower 50s. Chance of precipitation 60 percent. .THURSDAY NIGHT...Mostly cloudy. Snow and rain showers likely in the evening, then a chance of snow showers after midnight. Light snow accumulation possible. Breezy with lows in the mid 20s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers. A slight chance of thunderstorms in the afternoon. New littleor no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 50 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Lows in the lower 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of rain showers in the afternoon. Highs around 50. Chance of precipitation 30 percent. $$ WYZ018-202200- Lander Foothills- Including the city of Lander 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 70s. South winds around 10 mph with gusts up to 20 mph, becoming west 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Mostly clear and breezy. Lows in the lower 40s. West winds 15 to 20 mph, becoming southwest around 10 mph after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows around 50. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Windy with highs in the mid 60s. Southwest winds 25 to 35 mph. Gusts up to 45 mph, increasing to 60 mph in the afternoon. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers. A chance of snow showers after midnight. Windy with lows in the upper 30s. Chance of precipitation 40 percent. .THURSDAY...Mostly cloudy. A chance of rain and snow showers in the morning, then rain and snow showers likely in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 50s. Chance of precipitation 60 percent. .THURSDAY NIGHT...Rain showers likely in the evening. Snow showers likely. Light snow accumulation possible. Lows in the mid 20s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Lows in the lower 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the upper 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers, a slight chance of rain showers and thunderstorms in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. $$ WYZ028-202200- Rock Springs and Green River- Including the cities of Rock Springs and Green River 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs around 70. Southwest winds around 10 mph, becoming west 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Lows around 40. South winds 10 to 15 mph with gusts up to 25 mph in the evening. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows around 40. South winds 15 to 20 mph with gusts up to 30 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers, snow showers with a slight chance of thunderstorms in the afternoon. Windy with highs in the upper 50s. Southwest winds 20 to 30 mph with gusts up to 45 mph. Chance of precipitation30 percent. .WEDNESDAY NIGHT...Partly cloudy and breezy. Lows in the lower 30s. .THURSDAY...Mostly cloudy with a slight chance of snow showers in the morning, then partly cloudy with a chance of snow showers, a slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 50. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of rain showers in the evening. A slight chance of snow showers. Breezy with lows in the upper 20s. Chance of precipitation 20 percent. .FRIDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of thunderstorms in the afternoon. Breezy with highs around 50. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SATURDAY...Partly cloudy with a slight chance of snow showers in the morning, then mostly sunny with a chance of snow showers with a slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 20s. .SUNDAY...Partly cloudy. A chance of snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. $$ WYZ013-202200- Jackson Hole- Including the city of Jackson 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny. Highs in the mid 60s. Southwest winds 10 to 15 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. Southwest winds 10 to 15 mph, becoming southeast after midnight. .TUESDAY...Partly cloudy. Highs in the upper 60s. South winds around 10 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A chance of rain showers. Lows in the upper 30s. Southeast winds around 10 mph. Chance of rain 40 percent. .WEDNESDAY...Rain and snow showers likely in the morning, then snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy, cooler with highs around 50. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers with a slight chance of thunderstorms in the evening. Snow showers. Light snow accumulation. Breezy with lows in the upper 20s. Chance of precipitation near 100 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Highs in the lower 40s. Chance of snow 90 percent. .THURSDAY NIGHT...Rain showers likely with a slight chance of thunderstorms in the evening. Mostly cloudy with snow showers likely. New light snow accumulation possible. Lows in the lower 20s. Chance of precipitation 60 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Highs in the lower 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Partly cloudy with a 40 percent chance of snow showers. Cold with lows around 20. .SATURDAY...Mostly sunny in the morning, then becoming partly cloudy. A 30 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 40s. Chance of snow 40 percent. $$ WYZ003-202200- Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the lower 70s. West winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s. Southwest winds 15 to 20 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Windy with highs in the mid 60s. Southwest winds 20 to 30 mph. Gusts up to 40 mph, increasing to 55 mph in the afternoon. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then rain showers with snow showers likely after midnight. Little or no snow accumulation. Windy with lows in the upper 30s. Chance of precipitation 80 percent. .THURSDAY...Snow and rain showers in the morning, then snow showers, rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy, cooler with highs in the mid 40s. Chance of precipitation 80 percent. .THURSDAY NIGHT...A chance of rain showers in the evening. Mostly cloudy with a chance of snow showers. Windy with lows in the mid 20s. Chance of precipitation 40 percent. .FRIDAY...Mostly cloudy. A chance of snow showers in the morning, then snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the upper 30s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of snow showers, mainly in the evening. Breezy with lows in the lower 20s. Chance of snow 30 percent. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the lower 40s. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 20s. .SUNDAY...Mostly cloudy in the morning, then partly cloudy with a chance of snow showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 30 percent. $$ WYZ004-202200- North Bighorn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny. Highs in the upper 70s. Southeast winds around 10 mph, becoming southwest with gusts up to 25 mph this afternoon. .TONIGHT...Mostly clear. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 25 mph, becoming south after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 80. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 50. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers with a slight chance of thunderstorms in the afternoon. Windy with highs in the lower 70s. South winds 15 to 20 mph with gusts up to 35 mph, becoming southwest 20 to 30 mph with gusts up to 45 mph in the afternoon. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Breezy with lows in the upper 30s. Chance of rain 60 percent. .THURSDAY...Mostly cloudy. Showers with a slight chance of snow showers in the morning, then rain and snow showers likely in the afternoon. Little or no snow accumulation. Windy and much cooler with highs around 50. Chance of precipitation 80 percent. .THURSDAY NIGHT...A chance of rain showers in the evening. Mostly cloudy with a chance of snow showers. Windy with lows in the upper 20s. Chance of precipitation 40 percent. .FRIDAY...Mostly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 40s. Chance of snow 40 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of snow showers in the evening, then partly cloudy with a slight chance of snow showers after midnight. Breezy with lows in the mid 20s. Chance of snow 30 percent. .SATURDAY...Partly cloudy. A chance of snow showers, mainly in the morning. Highs around 50. Chance of snow 30 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 20s. .SUNDAY...Partly cloudy with a slight chance of snow showers. A slight chance of rain showers in the afternoon. Highs around 50. Chance of precipitation 20 percent. $$ WYZ006-202200- Southeast Bighorn Basin- Including the cities of Ten Sleep and Worland 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny. Highs in the upper 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph this afternoon. .TONIGHT...Mostly clear. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 25 mph, becoming south after midnight. .TUESDAY...Partly cloudy. Highs around 80. South winds 10 to 15 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers in the afternoon. Windy with highs in the lower 70s. South winds 20 to 25 mph with gusts up to 40 mph, becoming southwest 25 to 35 mph with gusts up to 50 mph in the afternoon. Chance of rain 20 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Breezy with lows in the upper 30s. Chance of rain 50 percent. .THURSDAY...Showers with a slight chance of snow showers in the morning, then rain and snow showers likely in the afternoon. Little or no snow accumulation. Windy, cooler with highs in the lower 50s. Chance of precipitation 80 percent. .THURSDAY NIGHT...Mostly cloudy. Snow and rain showers likely in the evening, then a chance of snow showers after midnight. Little or no snow accumulation. Breezy with lows in the upper 20s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy with a chance of snow showers in the morning, then partly cloudy with snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Breezy with lows in the mid 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs around 50. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of rain showers in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. $$ WYZ005-202200- Southwest Bighorn Basin- Including the city of Thermopolis 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs in the upper 70s. West winds 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Mostly clear. Lows in the mid 40s. Southwest winds 10 to 15 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 80. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of showers in the afternoon. Windy with highs around 70. Southwest winds 25 to 35 mph with gusts up to 50 mph. Chance of rain 30 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostlycloudy. A 50 percent chance of showers. Windy with lows around 40. .THURSDAY...Rain and snow showers likely in the morning, then showers, snow showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy, cooler with highs around 50. Chance of precipitation 80 percent. .THURSDAY NIGHT...Mostly cloudy. Snow and rain showers likely in the evening, then a chance of snow showers after midnight. Little or no snow accumulation. Breezy with lows in the mid 20s. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. Snow showers likely. A slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Lows in the lower 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the upper 40s. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow and rain showers in the afternoon. Highs around 50. Chance of precipitation 30 percent. $$ WYZ023-202200- Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny. Highs around 70. South winds around 10 mph, becoming southwest with gusts up to 25 mph this afternoon. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows around 40. South winds 10 to 15 mph in the evening. .TUESDAY...Partly cloudy. A slight chance of showers in the afternoon. Highs around 70. South winds around 10 mph with gusts up to 20 mph in the afternoon. Chance of rain 20 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy with a slight chance of showers after midnight. Lows around 40. Southeast winds around 10 mph with gusts up to 20 mph in the evening. Chance of rain 40 percent. .WEDNESDAY...Rain and snow showers likely in the morning, then showers, snow showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy, cooler with highs around 50. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...Rain showers with a slight chance of thunderstorms in the evening. Snow showers. Light snow accumulation. Lows in the lower 30s. Chance of precipitation 90 percent. .THURSDAY...Snow showers. Rain showers with a slight chance of thunderstorms in the afternoon. New little or no snow accumulation. Highs in the mid 40s. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy. Snow and rain showers likely in the evening, then a chance of snow showers after midnight. Little or no snow accumulation. Lows in the mid 20s. Chance of precipitation 60 percent. .FRIDAY...Partly cloudy with a chance of snow showers in the morning, then mostly cloudy with snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs in the mid 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 40 percent chance of snow showers. Lows in the mid 20s. .SATURDAY...Mostly sunny in the morning, then becoming partly cloudy. A 40 percent chance of snow showers. Highs around 50. .SATURDAY NIGHT...Partly cloudy. A chance of snow showers, mainly in the evening. Lows in the mid 20s. Chance of snow 30 percent. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Highs around 50. Chance of precipitation 40 percent. $$ WYZ025-202200- Upper Green River Basin Foothills- Including the city of Pinedale 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs in the mid 60s. Southeast winds around 10 mph, becoming southwest 15 to 20 mph this afternoon. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the mid 30s. West winds 15 to 20 mph in the evening. .TUESDAY...Partly cloudy. Highs in the upper 60s. Southeast winds around 10 mph, becoming south with gusts up to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. South winds 10 to 15 mph. .WEDNESDAY...Partly cloudy with a chance of rain and snow showers in the morning, then mostly cloudy with snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy with highs around 50. South winds 20 to 25 mph, becoming southwest 20 to 30 mph in the afternoon. Gusts up to 45 mph. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Cloudy with snow showers. Little or no snow accumulation. Breezy with lows in the upper 20s. Chance of snow 80 percent. .THURSDAY...Mostly cloudy. Snow showers in the morning, then snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 80 percent. .THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of snow showers. Breezy with lows in the lower 20s. .FRIDAY...Partly cloudy with snow showers likely. A slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the lower 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Cold with lows around 20. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy. Cold with lows around 20. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 30 percent. $$ WYZ026-202200- Upper Green River Basin- Including the cities of La Barge, Big Piney, and Farson 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs around 70. South winds 10 to 15 mph, becoming west 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Mostly clear. Lows in the mid 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 70. Southeast winds around 10 mph, becoming south with gusts up to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows around 40. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Windy with highs in the mid 50s. Southwest winds 25 to 35 mph with gusts up to 50 mph. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of snow showers. Windy with lows in the upper 20s. Chance of snow 30 percent. .THURSDAY...Mostly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs around 50. Chance of snow 30 percent. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of snow showers. Breezy with lows in the lower 20s. .FRIDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 40s. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy. A chance of snow showers, mainly in the evening. Cold with lows around 20. Chance of snow 30 percent. .SATURDAY...Partly cloudy in the morning, then clearing. A 20 percent chance of snow showers. Highs around 50. .SATURDAY NIGHT...Partly cloudy. Lows in the lower 20s. .SUNDAY...Partly cloudy with a slight chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 20 percent. $$ WYZ010-202200- Northeast Johnson County- Including the city of Buffalo 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Highs in the mid 70s. Southwest winds around 10 mph, becoming north with gusts up to 20 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. North winds around 10 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny. Highs around 80. South winds around 10 mph. .TUESDAY NIGHT...Partly cloudy. Lows around 50. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy in the morning, then clearing. Windy with highs in the mid 70s. South winds 25 to 35 mph with gusts up to 50 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Breezy with lows in the upper 30s. Chance of rain 60 percent. .THURSDAY...Mostly cloudy with a slight chance of thunderstorms. Showers with a slight chance of snow showers in the morning, then a chance of rain and snow showers in the afternoon. Little or no snow accumulation. Very windy and much cooler with highs in the mid 40s. Chance of precipitation 80 percent. .THURSDAY NIGHT...Mostly cloudy. A chance of snow and rain showers in the evening, then a slight chance of snow showers after midnight. Windy with lows in the mid 20s. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 40s. Chance of snow 30 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of snow showers in the evening, then partly cloudy with a slight chance of snow showers after midnight. Breezy with lows in the lower 20s. Chance of snow 30 percent. .SATURDAY...Partly cloudy. A chance of snow showers, mainly in the morning. Highs in the mid 40s. Chance of snow 30 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 20s. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. A 20 percent chance of snow showers. Highs in the upper 40s. $$ WYZ011-202200- Southeast Johnson County- Including the city of Kaycee 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs in the mid 70s. Southwest winds 10 to 15 mph, becoming northwest 15 to 20 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. Northwest winds 10 to 15 mph, becoming southwest after midnight. .TUESDAY...Mostly sunny. Highs around 80. Southwest winds around 10 mph with gusts up to 20 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. South winds 10 to 15 mph. .WEDNESDAY...Partly cloudy in the morning, then clearing. Windy with highs in the lower 70s. Southwest winds 20 to 30 mph with gusts up to 45 mph, increasing to 30 to 35 mph with gusts up to 55 mph in the afternoon. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers after midnight. Windy with lows in the upper 30s. Chance of rain 40 percent. .THURSDAY...Mostly cloudy. Showers with a slight chance of snow showers in the morning, then showers, snow showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy and much cooler with highs in the upper 40s. Chance of precipitation 80 percent. .THURSDAY NIGHT...A chance of rain showers in the evening. Mostly cloudy with a chance of snow showers. Breezy with lows in the mid 20s. Chance of precipitation 30 percent. .FRIDAY...Mostly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the lower 40s. Chance of snow 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy with a slight chance of snow showers in the morning, then mostly cloudy with a chance of snow showers in the afternoon. Highs in the upper 40s. Chance of snow 30 percent. $$ WYZ027-202200- South Lincoln County- Including the cities of Kemmerer and Cokeville 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs around 70. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s. West winds 10 to 15 mph with gusts up to 25 mph in the evening. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 70. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 30s. South winds 10 to 15 mph. .WEDNESDAY...Mostly sunny with a chance of rain and snow showers in the morning, then partly cloudy with snow showers, rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy, cooler with highs in the lower 50s. Southwest winds 25 to 35 mph with gusts up to 45 mph. Chance of precipitation 60 percent. .WEDNESDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Windy with lows around 30. .THURSDAY...Mostly cloudy. Snow showers likely in the morning, then a chance of snow showers, a slight chance of thunderstorms and rain showers in the afternoon. Little or no snow accumulation. Breezy with highs in the upper 40s. Chance of precipitation 60 percent. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Breezy with lows in the mid 20s. .FRIDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs around 50. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SATURDAY...Partly cloudy in the morning, then clearing. A chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers, rain showers with a slight chance of thunderstorms in the afternoon. Highs around 50. Chance of precipitation 30 percent. $$ WYZ016-202200- Upper Wind River Basin- Including the city of Dubois 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the upper 60s. West winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Breezy with lows around 40. West winds 15 to 20 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s. West winds around 10 mph, becoming southwest in the afternoon. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 40. West winds 10 to 15 mph. Chance of rain 30 percent. .WEDNESDAY...Mostly sunny with a chance of rain and snow showers in the morning, then partly cloudy with snow showers with rain showers with possible thunderstorms in the afternoon. Little or no snow accumulation. Windy with highs in the mid 50s. Southwest winds 20 to 25 mph with gusts up to 35 mph, increasing to 25 to 35 mph with gusts up to 50 mph in the afternoon. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Rain showers likely in the evening. Snow showers. Little or no snow accumulation. Windy with lows in the lower 30s. Chance of precipitation 80 percent. .THURSDAY...Snow showers. Rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy. Snow showers with rain showers likely in the evening, then snow showers likely after midnight. Light snow accumulation. Breezy with lows in the lower 20s. Chance of precipitation 80 percent. .FRIDAY...Mostly cloudy with snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Breezy with highs around 40. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with snow showers likely in the evening, then partly cloudy with a chance of snow showers after midnight. New light snow accumulation possible. Cold with lows around 20. Chance of snow 60 percent. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs around 40. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 40s. Chance of snow 30 percent. $$ WYZ001-202200- Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs in the mid 50s. South winds around 10 mph, becoming southwest 15 to 20 mph this afternoon. .TONIGHT...Mostly clear. Lows in the lower 30s. Southwest winds 10 to 15 mph, becoming south after midnight. .TUESDAY...Partly cloudy. Highs in the upper 50s. South winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers. A chance of snow showers after midnight. Lows in the mid 30s. South winds around 10 mph with gusts up to 25 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy with snow and rain showers likely in the morning, then mostly cloudy with snow showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 40 mph. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Snow showers. Moderate snow accumulation. Breezy with lows in the mid 20s. Chance of snow near 100 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Highs in the mid 30s. Chance of snow 90 percent. .THURSDAY NIGHT...Mostly cloudy with snow showers. New light snow accumulation. Cold with lows 14 to 20. Chance of snow 80 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Highs in the lower 30s. Chance of snow 70 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 40 percent chance of snow showers. Cold with lows 10 to 15. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs in the mid 30s. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of snow showers. Cold with lows 14 to 20. .SUNDAY...Partly cloudy with a chance of snowshowers. A slight chance of thunderstorms in the afternoon. Highs in the upper 30s. Chance of snow 40 percent. $$ WYZ029-202200- Flaming Gorge- 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs around 70. South winds around 10 mph, becoming southwest 15 to 20 mph with gusts up to 30 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Lows in the lower 40s. South winds 10 to 15 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. South winds 10 to 15 mph with gusts up to 25 mph, increasing to 20 to 25 mph with gusts up to 35 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s. South winds 15 to 25 mph with gusts up to 35 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers, thunderstorms and snow showers in the afternoon. Windy with highs in the upper 50s. Temperature falling into the lower 50s in the afternoon. South winds 20 to 30 mph, becoming southwest 25 to 30 mph in the afternoon. Gusts up to 50 mph. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Windy with lows in the lower 30s. .THURSDAY...Mostly cloudy. A chance of snow showers, a slight chance of rain showers and thunderstorms in the afternoon. Breezy with highs around 50. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of rain showers in the evening. A slight chance of snow showers. Breezy with lows in the upper 20s. Chance of precipitation 20 percent. .FRIDAY...Partly cloudy. A chance of snow showers, a slight chance of thunderstorms and rain showers in the afternoon. Breezy with highs in the lower 50s. Chance of precipitation 30 percent. .FRIDAY NIGHT...A slight chance of rain showers in the evening. Partly cloudy with a slight chance of snow showers. Breezy with lows in the upper 20s. Chance of precipitation 20 percent. .SATURDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers, a slight chance of thunderstorms and rain showers in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 20 percent chance of snow showers. Lows in the upper 20s. .SUNDAY...Partly cloudy. A chance of rain showers, snow showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 50s. Chance of precipitation 30 percent. $$ WYZ022-202200- Casper Mountain- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 60s. Southwest winds 20 to 25 mph with gusts up to 35 mph. .TONIGHT...Mostly clear and breezy. Lows in the lower 40s. West winds 15 to 20 mph with gusts up to 30 mph, becoming south around 10 mph after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Highs around 70. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Partly cloudy. Lows in the upper 40s. South winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Partly cloudy and windy. Highs in the lower 60s. Southwest winds 20 to 30 mph with gusts up to 50 mph. .WEDNESDAY NIGHT...Partly cloudy. A slight chance of snow showers after midnight. Windy with lows in the lower 30s. Chance of snow 20 percent. .THURSDAY...Mostly cloudy. A chance of snow showers in the morning, then snow showers, rain showers likely with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Very windy with highs in the mid 40s. Chance of precipitation 60 percent. .THURSDAY NIGHT...Mostly cloudy. Snow showers likely, mainly inthe evening. Light snow accumulation possible. Breezy with lows in the lower 20s. Chance of snow 60 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New little or no snow accumulation. Highs around 40. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of snow showers. Light snow accumulation possible. Cold with lows 17 to 23. .SATURDAY...Mostly cloudy in the morning, then becoming partly cloudy. A 40 percent chance of snow showers. Highs in the upper 30s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 40 percent. $$ WYZ002-202200- Absaroka Mountains- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the lower 50s. West winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Partly cloudy and breezy. Lows in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY...Partly cloudy and breezy. Highs in the mid 50s. Southwest winds 15 to 20 mph with gusts up to 35 mph. .TUESDAY NIGHT...Partly cloudy. A chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then a slight chance of rain and snow showers after midnight. Lows in the mid 30s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 30 percent. .WEDNESDAY...Partly cloudy. A chance of snow and rain showers in the morning, then snow showers with possible rain showers and thunderstorms likely in the afternoon. Little or no snow accumulation. Windy with highs in the mid 40s. Southwest winds 20 to 25 mph with gusts up to 45 mph, increasing to 25 to 35 mph with gusts up to 60 mph in the afternoon. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Snow showers. Light snow accumulation. Windy with lows in the mid 20s. Chance of snow 90 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Windy with highs in the lower 30s. Chance of snow 90 percent. .THURSDAY NIGHT...Snow showers. New light snow accumulation. Breezy, cold with lows 12 to 20. Chance of snow 80 percent. .FRIDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the mid 20s. Chance of snow 80 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 50 percent chance of snow showers. New light snow accumulation possible. Breezy, cold with lows 10 to 15. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the upper 20s. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of snow showers. Cold with lows 12 to 20. .SUNDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 30s. Chance of snow 40 percent. $$ WYZ007-202200- Owl Creek and Bridger Mountains- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs around 70. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Mostly clear and breezy. Lows in the mid 40s. West winds 15 to 20 mph. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. Southwest winds 15 to 20 mph. .TUESDAY NIGHT...Partly cloudy and breezy. Lows in the upper 40s. South winds 15 to 20 mph with gusts up to 30 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain and snow showers in the afternoon. Very windywith highs in the lower 60s. Southwest winds 30 to 40 mph with gusts up to 60 mph. Chance of precipitation 40 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers. A chance of snow showers in the evening, then snow showers likely after midnight. Little or no snow accumulation. Windy with lows in the upper 30s. Chance of precipitation 60 percent. .THURSDAY...Snow showers with rain showers likely. A slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy, cooler with highs in the mid 40s. Chance of precipitation 80 percent. .THURSDAY NIGHT...Mostly cloudy. Snow showers likely, mainly in the evening. Light snow accumulation possible. Windy with lows in the mid 20s. Chance of snow 60 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Breezy with highs in the upper 30s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Breezy with lows in the lower 20s. .SATURDAY...Partly cloudy with a 30 percent chance of snow showers. Highs around 40. .SATURDAY NIGHT...Partly cloudy. A chance of snow showers, mainly in the evening. Lows in the mid 20s. Chance of snow 30 percent. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 40s. Chance of snow 30 percent. $$ WYZ008-202200- Bighorn Mountains West- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Highs in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly clear. Lows in the lower 40s. West winds 10 to 15 mph, becoming south after midnight. .TUESDAY...Partly cloudy. Highs in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy. A slight chance of rain showers in the evening. Breezy with lows in the upper 40s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain and snow showers in the afternoon. Windy with highs in the upper 50s. Southwest winds 25 to 35 mph with gusts up to 55 mph. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. Snow showers likely with a chance of rain showers in the evening, then snow showers with rain showers likely after midnight. Light snow accumulation. Windy with lows in the lower 30s. Chance of precipitation 80 percent. .THURSDAY...Snow and rain showers in the morning, then snow showers likely with a slight chance of thunderstorms in the afternoon. New light snow accumulation. Windy, cooler with highs in the upper 30s. Chance of precipitation 90 percent. .THURSDAY NIGHT...Mostly cloudy. Snow showers likely, mainly in the evening. New light snow accumulation possible. Breezy, cold with lows around 20. Chance of snow 60 percent. .FRIDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the lower 30s. Chance of snow 80 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 40 percent chance of snow showers. Breezy, cold with lows 12 to 24. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. A 30 percent chance of snow showers. Highs in the upper 30s. $$ WYZ009-202200- Bighorn Mountains Southeast- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the lower 60s. West winds 15 to 20 mph withgusts up to 35 mph. .TONIGHT...Partly cloudy. Lows in the lower 40s. West winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY...Partly cloudy and breezy. Highs in the upper 60s. West winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy and breezy. Lows in the upper 40s. Southwest winds 15 to 25 mph with gusts up to 45 mph. .WEDNESDAY...Mostly sunny. A chance of snow showers with a slight chance of rain showers in the afternoon. Very windy with highs around 60. Southwest winds 30 to 40 mph with gusts up to 65 mph. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of rain showers with a slight chance of thunderstorms. A chance of snow showers in the evening, then snow showers likely after midnight. Little or no snow accumulation. Very windy with lows in the lower 30s. Chance of precipitation 60 percent. .THURSDAY...A slight chance of thunderstorms. Snow showers. Light snow accumulation. Windy, cooler with highs in the upper 30s. Chance of snow 80 percent. .THURSDAY NIGHT...Mostly cloudy. Snow showers likely, mainly in the evening. New light snow accumulation possible. Windy with lows in the lower 20s. Chance of snow 60 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Breezy with highs in the lower 30s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of snow showers. Breezy, cold with lows 13 to 21. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy in the morning, then becoming mostly cloudy. A 30 percent chance of snow showers. Highs in the upper 30s. $$ WYZ012-202200- Teton and Gros Ventre Mountains- 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny. Highs in the mid 50s. South winds around 10 mph, becoming southwest this afternoon. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. Southwest winds 10 to 15 mph, becoming south after midnight. .TUESDAY...Partly cloudy. Highs in the upper 50s. South winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the evening, then a chance of snow showers after midnight. Lows in the mid 30s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy with snow and rain showers likely in the morning, then mostly cloudy with snow showers with a slight chance of thunderstorms in the afternoon. Light snow accumulation. Breezy with highs in the lower 40s. Southwest winds 15 to 25 mph with gusts up to 45 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Snow showers. New moderate snow accumulation. Breezy with lows in the mid 20s. Chance of snow near 100 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the lower 30s. Chance of snow 90 percent. .THURSDAY NIGHT...Snow showers with a slight chance of thunderstorms in the evening, then snow showers likely after midnight. New light snow accumulation. Breezy, cold with lows 16 to 22. Chance of snow 80 percent. .FRIDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the lower 30s. Chance of snow 80 percent. .FRIDAY NIGHT...Mostly cloudy with snow showers likely in the evening, then partly cloudy with a chance of snow showers after midnight. New light snow accumulation possible. Cold with lows 15 to 20. Chance of snow 60 percent. .SATURDAY...Mostly sunny in the morning, then becoming partly cloudy. A 40 percent chance of snow showers. Highs in the mid 30s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Cold with lows 16 to 22. .SUNDAY...Mostly cloudy in the morning, then becoming partly cloudy. A chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 30s. Chance of snow 40 percent. $$ WYZ014-202200- Wind River Mountains West- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 50s. Southwest winds 15 to 20 mph with gusts up to 35 mph. .TONIGHT...Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the mid 30s. West winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. .TUESDAY...Partly cloudy. A slight chance of. Highs in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly cloudy with a chance of rain showers, snow showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 30 percent. .WEDNESDAY...Partly cloudy with a chance of snow and rain showers in the morning, then mostly cloudy with snow showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy with highs in the lower 40s. Southwest winds 25 to 35 mph with gusts up to 55 mph. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Snow showers. Light snow accumulation. Windy with lows in the lower 20s. Chance of snow 80 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the mid 30s. Chance of snow 90 percent. .THURSDAY NIGHT...A slight chance of thunderstorms in the evening. Snow showers likely. New light snow accumulation possible. Breezy, cold with lows 13 to 21. Chance of snow 60 percent. .FRIDAY...Snow showers likely. A slight chance of thunderstorms in the afternoon. New light snow accumulation possible. Breezy with highs in the lower 30s. Chance of snow 70 percent. .FRIDAY NIGHT...Mostly cloudy with snow showers likely in the evening, then partly cloudy with a chance of snow showers after midnight. New light snow accumulation possible. Cold with lows 10 to 20. Chance of snow 60 percent. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the lower 30s. .SATURDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of snow showers. Cold with lows 12 to 22. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 30s. Chance of snow 40 percent. $$ WYZ015-202200- Wind River Mountains East- 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs in the mid 50s. Southwest winds 15 to 25 mph with gusts up to 40 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Breezy with lows in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of rain and snow showers in the afternoon. Breezy with highs in the mid 50s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 20 percent. .TUESDAY NIGHT...Partly cloudy with a chance of snow showers. A chance of rain showers with a slight chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Breezy with lows in the mid 30s. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 40 percent. .WEDNESDAY...Mostly sunny with a chance of snow showers with a slight chance of rain showers in the morning, then partly cloudy with snow showers with a slight chance of thunderstorms in the afternoon. Light snow accumulation. Very windy with highs in the lower 40s. Southwest winds 30 to 40 mph with gusts up to 65 mph. Chance of precipitation 80 percent. .WEDNESDAY NIGHT...Snow showers. New light snow accumulation. Very windy with lows in the mid 20s. Chance of snow 90 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Windy with highs in the mid 30s. Chance of snow 90 percent. .THURSDAY NIGHT...Snow showers with a slight chance of thunderstorms in the evening, then snow showers likely after midnight. New moderate snow accumulation. Breezy, cold with lows 11 to 21. Chance of snow 80 percent. .FRIDAY...Snow showers likely in the morning, then snow showers with a slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs around 30. Chance of snow 80 percent. .FRIDAY NIGHT...Mostly cloudy with snow showers likely in the evening, then partly cloudy with a chance of snow showers after midnight. New light snow accumulation possible. Breezy, cold with lows 8 to 20 above. Chance of snow 60 percent. .SATURDAY...Partly cloudy. A chance of snow showers in the morning, then snow showers likely in the afternoon. New light snow accumulation possible. Breezy with highs in the lower 30s. Chance of snow 60 percent. .SATURDAY NIGHT...Partly cloudy with a 40 percent chance of snow showers. Cold with lows 12 to 22. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Light snow accumulation possible. Highs in the mid 30s. Chance of snow 50 percent. $$ WYZ019-202200- Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs around 70. Southwest winds 15 to 25 mph with gusts up to 35 mph. .TONIGHT...Mostly clear and breezy. Lows around 40. West winds 15 to 20 mph with gusts up to 30 mph, becoming southwest around 10 mph after midnight. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Partly cloudy and breezy. Lows in the mid 40s. South winds 15 to 20 mph with gusts up to 30 mph. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a chance of rain and snow showers in the afternoon. Windy with highs in the lower 60s. Southwest winds 25 to 35 mph with gusts up to 60 mph. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...A chance of rain showers in the evening. Partly cloudy with a chance of snow showers. Windy with lows in the lower 30s. Chance of precipitation 30 percent. .THURSDAY...Mostly cloudy. A chance of snow showers in the morning, then snow and rain showers likely in the afternoon. Little or no snow accumulation. Windy with highs in the upper 40s. Chance of precipitation 60 percent. .THURSDAY NIGHT...Mostly cloudy with snow showers likely. Light snow accumulation possible. Breezy with lows in the lower 20s. Chance of snow 60 percent. .FRIDAY...Mostly cloudy in the morning, then becoming partly cloudy. Snow showers likely. A slight chance of thunderstorms in the afternoon. New little or no snow accumulation. Breezy with highs in the mid 40s. Chance of snow 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of snow showers. Little or no snow accumulation. Lows in the lower 20s. .SATURDAY...Partly cloudy with a 40 percent chance of snow showers. Highs in the mid 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows inthe lower 20s. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 40s. Chance of snow 30 percent. $$ WYZ024-202200- Salt River and Wyoming Ranges- 647 AM MDT Mon Apr 20 2026 .TODAY...Mostly sunny and breezy. Highs around 60. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TONIGHT...Mostly clear. Lows in the upper 30s. Southwest winds 10 to 15 mph, becoming south after midnight. .TUESDAY...Partly cloudy. A slight chance of. Highs in the lower 60s. South winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of rain showers. A slight chance of thunderstorms in the evening, then a slight chance of snow showers after midnight. Lows in the upper 30s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 40 percent. .WEDNESDAY...Partly cloudy with snow and rain showers likely in the morning, then mostly cloudy with snow showers with a slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Windy, cooler with highs in the lower 40s. Southwest winds 20 to 30 mph with gusts up to 50 mph. Chance of precipitation 90 percent. .WEDNESDAY NIGHT...A slight chance of thunderstorms in the evening. Snow showers. Light snow accumulation. Windy with lows in the upper 20s. Chance of snow 90 percent. .THURSDAY...Snow showers. A slight chance of thunderstorms in the afternoon. New light snow accumulation. Breezy with highs in the upper 30s. Chance of snow 90 percent. .THURSDAY NIGHT...Mostly cloudy with snow showers likely. New little or no snow accumulation. Breezy with lows in the lower 20s. Chance of snow 60 percent. .FRIDAY...Partly cloudy with snow showers likely. A slight chance of thunderstorms in the afternoon. Little or no snow accumulation. Breezy with highs in the upper 30s. Chance of snow 60 percent. .FRIDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SATURDAY...Mostly sunny with a 40 percent chance of snow showers. Highs in the lower 40s. .SATURDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows in the lower 20s. .SUNDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 40s. Chance of snow 30 percent. $$ WYZ030-202200- East Sweetwater County- Including the city of Wamsutter 647 AM MDT Mon Apr 20 2026 .TODAY...Partly cloudy this morning, then clearing. Breezy with highs around 70. Southwest winds 15 to 20 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Breezy with lows around 40. West winds 15 to 20 mph in the evening. .TUESDAY...Mostly sunny in the morning, then becoming partly cloudy. Breezy with highs in the lower 70s. South winds 15 to 20 mph. Gusts up to 35 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy and breezy. Lows in the mid 40s. South winds 15 to 20 mph. Gusts up to 35 mph in the evening. .WEDNESDAY...Mostly sunny in the morning, then partly cloudy with a slight chance of showers, thunderstorms and snow showers in the afternoon. Windy with highs around 60. Temperature falling into the lower 50s in the afternoon. Southwest winds 25 to 35 mph with gusts up to 50 mph. Chance of precipitation 20 percent. .WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Windy with lows in the lower 30s. .THURSDAY...Mostly cloudy with a chance of snow showers. A slight chance of rain showers and thunderstorms in the afternoon. Windy with highs around 50. Chance of precipitation 30 percent. .THURSDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A chance of rain showers in the evening. A chance of snow showers. Breezy with lows in the mid 20s. Chance of precipitation 30 percent. .FRIDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Breezy with highs around 50. Chance of snow 30 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A 30 percent chance of snow showers. Breezy with lows in the lower 20s. .SATURDAY...Partly cloudy with a chance of snow showers. A slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. .SATURDAY NIGHT...Partly cloudy with a 20 percent chance of snow showers. Lows in the mid 20s. .SUNDAY...Partly cloudy. A slight chance of snow showers in the morning, then a chance of snow showers with a slight chance of thunderstorms in the afternoon. Highs around 50. Chance of snow 30 percent. $$