FPUS53 KLSX 201353 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 853 AM CDT Mon Apr 20 2026 ILZ100-101-MOZ061-063-064-202100- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs around 70. Southeast winds 5 to 10 mph. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph. .TUESDAY...Sunny. Not as cool with highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 40 percent chance of showers. Lows in the lower 50s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. $$ MOZ042-049-050-202100- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the lower 70s. Southeast winds 5 to 10 mph, becoming south with gusts up to 20 mph this afternoon. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .WEDNESDAY...Sunny. Highs in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. .THURSDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Showers likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Cooler with lows in the upper 40s. Chance of rain 50 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Chance of rain 40 percent. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. $$ MOZ041-047-048-202100- Boone MO-Moniteau MO-Cole MO- Including the citiesof Columbia and Jefferson City 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the mid 70s. Southeast winds 5 to 10 mph, becoming south with gusts up to 20 mph this afternoon. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph with gusts up to 25 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. .THURSDAY NIGHT...A chance of thunderstorms. Showers. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Showers likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Cooler with lows in the upper 40s. Chance of rain 50 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 40s. Chance of rain 40 percent. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. $$ ILZ095>097-MOZ018-019-026-027-034>036-202100- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs around 70. Southeast winds 5 to 10 mph. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 10 to 15 mph. Gusts up to 30 mph after midnight. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. A slight chance of showers in the evening. Lows in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 20 percent. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 percent. .THURSDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Showers likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Cooler with highs around 70. Chance of rain 70 percent. .FRIDAY 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. Cooler with lows in the upper 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A 30 percent chance of showers. Lows in the upper 40s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. $$ ILZ069-070-074-202100- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the upper 60s. East winds around 5 mph, becoming southeast around 5 mph this afternoon. .TONIGHT...Mostly clear. Lows around 50. South winds 5 to 10 mph. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the upper 70s. .THURSDAY NIGHT...Partly cloudy in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 60 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...A chance of thunderstorms. Showers likely, mainly in the evening. Cooler with lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy with a slight chance of showers in the evening, then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s. Chance of rain 40 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. $$ MOZ074-084-085-099-202100- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the mid 70s. East winds around 5 mph, becoming south around 5 mph this afternoon. .TONIGHT...Clear. Not as cool with lows in the lower 50s. South winds around 5 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the lower 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. .THURSDAY...Mostly sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 60 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Chance of rain 40 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 40 percent. $$ MOZ051-052-060-202100- Montgomery MO-Lincoln MO-Warren MO- 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the lower 70s. Southeast winds 5 to 10 mph. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the upper 50s. Chance of rain 90 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Cooler with lows in the upper 40s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs around 70. .SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of showers. Lows in the upper 40s. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 40 percent. $$ ILZ058-059-098-099-202100- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the upper 60s. Southeast winds 5 to 10 mph. .TONIGHT...Mostly clear. Not as cool with lows around 50. South winds 5 to 10 mph with gusts up to 20 mph. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 15 to 20 mph with gusts up to 30 mph. .TUESDAY NIGHT...Mostly clear. A slight chance of showers after midnight. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows around 60. Chance of rain 80 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with lows in the upper 40s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs around 70. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 30 percent. $$ ILZ060-064-065-202100- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the mid 60s. East winds around 5 mph, becoming southeast this afternoon. .TONIGHT...Mostly clear. Not as cool with lows in the upper 40s. South winds 5 to 10 mph. .TUESDAY...Sunny. Not as cool with highs in the upper 70s. Southwest winds 15 to 20 mph. .TUESDAY NIGHT...Mostly clear. A slight chance of showers after midnight. Lows in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. .WEDNESDAY...Sunny. Highs in the mid70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. .THURSDAY...Mostly sunny. Highs in the upper 70s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Cooler with lows in the lower 50s. Chance of rain 50 percent. .SATURDAY...Mostly sunny with a 20 percent chance of showers. Highs in the lower 70s. .SATURDAY NIGHT...Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 40s. Chance of rain 30 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 30 percent. $$ ILZ079-MOZ075-202100- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs around 70. East winds around 5 mph, becoming southeast around 5 mph this afternoon. .TONIGHT...Clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. .THURSDAY...Mostly sunny. Highs around 80. .THURSDAY NIGHT...Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 60 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent. .SATURDAY NIGHT AND SUNDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Chance of rain 40 percent. $$ MOZ059-062-072-073-202100- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the mid 70s. Southeast winds around 5 mph, becoming south around 5 mph this afternoon. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds 5 to 10 mph. .TUESDAY...Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Clear. Lows in the mid 50s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...A slight chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Cooler with lows around 50. Chance of rain 50 percent. .SATURDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. .SATURDAY NIGHT...Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows around 50. Chance of rain 40 percent. .SUNDAY...Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. $$ ILZ102-MOZ065-202100- Monroe IL-Jefferson MO- 853 AM CDT Mon Apr 20 2026 .TODAY...Sunny. Highs in the lower 70s. Southeast winds around 5 mph. .TONIGHT...Mostly clear. Not as cool with lows in the lower 50s. South winds around 5 mph. .TUESDAY...Sunny. Highs around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds 5 to 10 mph. .WEDNESDAY...Sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. .THURSDAY...Mostly sunny. Highs in the lower 80s. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Cooler with lows in the lower 50s. Chance of rain 70 percent. .SATURDAY...Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers. Lows around 50. Chance of rain 40 percent. .SUNDAY...Mostly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 40 percent. $$