FNUS55 KTFX 190851 FWFTFX Fire Weather Planning Forecast for North-Central Montana National Weather Service Great Falls MT 251 AM MDT Sun Apr 19 2026 .DISCUSSION... The warming and drying trend continues today into early next week. A few afternoon showers and thunderstorms cannot be ruled out Tuesday afternoon near terrain. Wednesday is the transition day, with showers, thunderstorms, and a cold front moving through. Much cooler temperatures move in behind the front, with cooler and wetter conditions developing for the latter portion of the week. -AM MTZ112-192215- Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......62-70...52-62 higher elevations. 24 hr trend......6 degrees up...14 degrees up higher elevations. * Min Humidity..........16-22 percent...24-34 percent higher elevations. 24 hr trend......3 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 15 to 20 mph. Ridges.............Southwest winds 15 to 20 mph. * Mixing Height.........500-1000 ft agl increasing to 6500-7000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......36-41. 24 hr trend......11 degrees up. * Max Humidity..........55-65 percent. 24 hr trend......10 percent down. * Wind (20 FT). Lower Elevations...West winds 15 to 20 mph. Ridges.............West winds 15 to 20 mph. * Mixing Height.........7000 ft agl decreasing to 500-1000 ft agl. * Transport Winds.......West 20 to 25 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......69-75...59-67 higher elevations. 24 hr trend......8 degrees up. * Min Humidity..........14-19 percent...21-31 percent higher elevations. 24 hr trend......2 percent down. * Wind (20 FT). Lower Elevations...Northwest winds 10 to 15 mph shifting to the south in the afternoon. Ridges.............Northwest winds 10 to 15 mph shifting to the south in the afternoon. * Mixing Height.........500-1500 ft agl increasing to 10000-10500 ft agl. * Transport Winds.......Northwest 20 to 25 mph shifting to the southwest in the afternoon. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s. Southwest winds 15 to 20 mph. .WEDNESDAY...Cooler, windy. Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. North winds around 25 mph. .THURSDAY...Much colder. Strong winds. Mostly cloudy. Rain with snow likely. Lows in the upper 20s. Highs in the lower 40s. Northwest winds around 45 mph. .FRIDAY...Mostly cloudy. Slight chance of snow. Lows in the mid 20s. Highs in the lower 40s. .SATURDAY...Mostly cloudy. Slight chance of snow. Lows in the lower 20s. Highs in the lower 40s. $$ MTZ113-192215- Hill and Blaine Counties- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Sunny. * Chance Lightning.......0 percent. * Max Temperature.......62-67...56-61 higher elevations. 24 hr trend......7 degrees up. * Min Humidity..........17-24 percent. 24 hr trend......2 percent down. * Wind (20 FT). Lower Elevations...South winds 15 to 20 mph. Ridges.............South winds 10 to 15 mph shifting to the southwest in the afternoon. * Mixing Height.........500-2000 ft agl increasing to 5000-6500 ft agl. * Transport Winds.......South 20 to 25 mph. * CWR...................0 percent..TONIGHT... * Sky/Weather...........Partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......36-43. 24 hr trend......9 degrees up. * Max Humidity..........55-65 percent...48-53 percent higher elevations. 24 hr trend......15 percent down...20 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........6000 ft agl decreasing to BELOW 1000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......69-74. 24 hr trend......5 degrees up. * Min Humidity..........19-29 percent. 24 hr trend......3 percent up. * Wind (20 FT). Lower Elevations...Northwest winds 5 to 10 mph. Ridges.............Northwest winds 5 to 10 mph. * Mixing Height.........500-1500 ft agl increasing to 7500-8500 ft agl. * Transport Winds.......Northwest 15 to 20 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Mostly clear. Lows in the mid 40s. Highs around 80. Southwest winds 10 to 15 mph. .WEDNESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows around 50. Highs in the lower 70s. East winds 20 to 25 mph. .THURSDAY...Much colder. Very windy. Rain likely and snow. Lows in the lower 30s. Highs in the mid 40s. Northwest winds around 35 mph. .FRIDAY...Mostly cloudy. Chance of snow and rain. Lows in the mid 20s. Highs in the lower 40s. .SATURDAY...Partly cloudy. Slight chance of snow. Lows in the lower 20s. Highs in the lower 40s. $$ MTZ114-192215- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Sunny. * Chance Lightning.......0 percent. * Max Temperature.......62-69...47-57 higher elevations. 24 hr trend......6 degrees up. * Min Humidity..........17-26 percent...28-38 percent higher elevations. 24 hr trend......2 percent up...25 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 15 to 20 mph. Ridges.............Southwest winds 15 to 20 mph. * Mixing Height.........1000-2500 ft agl increasing to 5500-7000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......36-44. 24 hr trend......11 degrees up. * Max Humidity..........48-58 percent. 24 hr trend......5 percent down...24 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 20 mph. Ridges.............Southwest winds 10 to 20 mph. * Mixing Height.........6500 ft agl decreasing to 1000 ft agl. * Transport Winds.......West 20 to 25 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Partly sunny then becoming sunny. * Chance Lightning.......0 percent. * Max Temperature.......69-75...55-65 higher elevations. 24 hr trend......8 degrees up. * Min Humidity..........14-21 percent...23-33 percent higher elevations. 24 hr trend......4 percent down. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph shifting to the south in the afternoon. Ridges.............Southwest winds 15 to 20 mph. * Mixing Height.........1000-2500 ft agl increasing to 8500-9500 ft agl. * Transport Winds.......West 15 to 20 mph increasing to southwest around 25 mph in the afternoon. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. Southwest winds 20 to 25 mph. .WEDNESDAY...Cooler, windy. Mostly cloudy. Showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the lower 60s. Northwest winds around 25 mph. .THURSDAY...Much colder. Very windy. Snow, showers and slight chance of thunderstorms. Lows in the upper 20s. Highs around 40. North winds around 35 mph. .FRIDAY...Mostly cloudy. Chance of snow. Lows in the mid 20s. Highs in the upper 30s. .SATURDAY...Mostly cloudy. Slight chance of snow. Lows in the lower 20s. Highs in the lower 40s. $$ MTZ115-192215- Chouteau and Fergus Counties- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Sunny. * Chance Lightning.......0 percent. * Max Temperature.......65-70...57-63 higher elevations. 24 hr trend......8 degrees up. * Min Humidity..........14-19 percent. 24 hr trend......7 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph shifting to the west in the afternoon. * Mixing Height.........500-1500 ft agl increasing to 7000-7500 ft agl. * Transport Winds.......Southwest 15 to 20 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......37-44. 24 hr trend......11 degrees up. * Max Humidity..........51-61 percent...39-47 percent higher elevations. 24 hr trend......21 percent down...28 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........6500 ft agl decreasing to 500-1000 ft agl. * Transport Winds.......Southwest 15 to 20 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......71-76...64-69 higher elevations. 24 hr trend......7 degrees up. * Min Humidity..........15-20 percent. 24 hr trend......1 percent down. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph. * Mixing Height.........500-1500 ft agl increasing to 9000 ft agl. * Transport Winds.......West 20 to 25 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Mostly clear. Lows in the mid 40s. Highs around 80. South winds 15 to 20 mph. .WEDNESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. South winds 15 to 20 mph. .THURSDAY...Much colder. Strong winds. Showers with possible snow and thunderstorms likely. Lows in the lower 30s. Highs in the lower 40s. Northwest winds around 45 mph. .FRIDAY...Mostly cloudy. Chance of snow and rain. Lows in the upper 20s. Highs in the lower 40s. .SATURDAY...Mostly cloudy. Slight chance of snow. Lows in the lower 20s. Highs in the lower 40s. $$ MTZ116-118-192215- Lincoln Ranger District of the Helena National Forest- Helena and Townsend Ranger Districts of the Helena National Forest- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Sunny. * Chance Lightning.......0 percent. * Max Temperature.......61-68...50-60 higher elevations. 24 hr trend......12 degrees up. * Min Humidity..........14-23 percent. 24 hr trend......4 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........1000-2500 ft agl increasing to 5500-7000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......37-43. 24 hr trend......9 degrees up. * Max Humidity..........43-53 percent. 24 hr trend......7 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........6500 ft agl decreasing to 1000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......68-76...58-68 higher elevations. 24 hr trend......7 degrees up. * Min Humidity..........12-22 percent. 24 hr trend......1 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........1000-2500 ft agl increasing to 10000-10500 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the lower 70s. South winds 20 to 25 mph. .WEDNESDAY...Cooler, windy. Mostly cloudy. Showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the lower 60s. South winds around 30 mph. .THURSDAY...Much colder. Very windy. Snow showers, showers and slight chance of thunderstorms. Lows in the lower 30s. Highs in the upper 30s. Northwest winds around 40 mph. .FRIDAY...Mostly cloudy. Chance of snow. Lows in the mid 20s. Highs around 40. .SATURDAY...Mostly cloudy. Chance of snow. Lows in the mid 20s. Highs in the lower 40s. $$ MTZ117-192215- Central and Eastern Lewis and Clark National Forest Areas- 251 AM MDT Sun Apr 19 2026 .TODAY... * Sky/Weather...........Sunny. * Chance Lightning.......0 percent. * Max Temperature.......60-70...52-62 higher elevations. 24 hr trend......9 degrees up. * Min Humidity..........16-21 percent. 24 hr trend......6 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 15 to 20 mph. Ridges.............Southwest winds 15 to 20 mph. * Mixing Height.........1000-2000 ft agl increasing to 5500-7000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......36-44. 24 hr trend......11 degrees up. * Max Humidity..........48-58 percent...37-47 percent higher elevations. 24 hr trend......8 percent down...14 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 20 mph. Ridges.............Southwest winds 10 to 20 mph. * Mixing Height.........6500 ft agl decreasing to 1000 ft agl. * Transport Winds.......Southwest 20 to 25 mph. * CWR...................0 percent. .MONDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......68-76...59-69 higher elevations. 24 hr trend......7 degrees up. * Min Humidity..........15-20 percent. 24 hr trend......Unchanged. * Wind (20 FT). Lower Elevations...West winds 15 to 20 mph. Ridges.............West winds 15 to 20 mph. * Mixing Height.........1000-2500 ft agl increasing to 9000-10000 ft agl. * Transport Winds.......West around 25 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. Southwest winds 20 to 25 mph. .WEDNESDAY...Cooler, windy. Mostly cloudy. Showers likely and slight chance of thunderstorms. Lows in the upper 40s. Highs in the mid 60s. South winds around 25 mph. .THURSDAY...Much colder. Strong winds. Snow, showers and slight chance of thunderstorms. Lows in the upper 20s. Highs in the upper 30s. Northwest winds around 50 mph. .FRIDAY...Mostly cloudy. Chance of snow. Lows in the lower 20s. Highs in the upper 30s. .SATURDAY...Mostly cloudy. Chance of snow. Lows in the lower 20s. Highs in the upper 30s. $$ weather.gov/greatfalls