


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
398 FNUS55 KTFX 130748 FWFTFX Fire Weather Planning Forecast for North-Central Montana National Weather Service Great Falls MT 148 AM MDT Sat Sep 13 2025 .DISCUSSION... Unsettled conditions will continue through the weekend and first half of the upcoming work as a large upper level disturbance slowly moves over the Western US. This will help to maintain daily chances for showers and storms across most Fire Weather Zones, with temperatures running near to to above normal. Transient ridging will move over the Northern Rockies then through the middle of the upcoming work week and bring a brief break from the showers and storms as of late. - Moldan MTZ112-132230- Eastern Glacier/Toole/Central/Eastern Pondera/Liberty- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Mostly sunny. Patchy fog in the morning. * Chance Lightning.......0 percent. * Max Temperature.......74-79...66-71 higher elevations. 24 hr trend......1 degree up. * Min Humidity..........32-39 percent. 24 hr trend......Unchanged...6 percent up higher elevations. * Wind (20 FT). Lower Elevations...South winds 5 to 10 mph. Ridges.............South winds 5 to 10 mph. * Mixing Height.........500-2000 ft agl increasing to 8000-8500 ft agl. * Transport Winds.......Southwest 10 to 15 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......45-51. 24 hr trend......3 degrees down...2 degrees up higher elevations. * Max Humidity..........82-92 percent. 24 hr trend......11 percent down...6 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........7500 ft agl decreasing to 500-2000 ft agl. * Transport Winds.......South 15 to 20 mph shifting to the southwest after midnight. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......74-81...66-72 higher elevations. 24 hr trend......2 degrees up. * Min Humidity..........26-34 percent. 24 hr trend......4 percent down. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph. * Mixing Height.........500-1000 ft agl increasing to 9500-10000 ft agl. * Transport Winds.......West 15 to 20 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Mostly cloudy. Chance of showers. Lows in the lower 50s. Highs around 70. West winds 15 to 20 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the upper 60s. Northwest winds 15 to 20 mph. .WEDNESDAY...Mostly clear. Lows in the mid 40s. Highs in the mid 70s. South winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the lower 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the mid 40s. Highs in the upper 60s. $$ MTZ113-132230- Hill and Blaine Counties- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Partly sunny. Patchy fog in the morning. Slight chance of showers through the day. Slight chance of thunderstorms in the afternoon. * Chance Lightning.......20 percent. * Max Temperature.......70-77...63-68 higher elevations. 24 hr trend......3 degrees up. * Min Humidity..........45-55 percent. 24 hr trend......14 percent up...7 percent up higher elevations. * Wind (20 FT). Lower Elevations...West winds around 5 mph shifting to the southeast in the afternoon. Ridges.............East winds around 5 mph. * Mixing Height.........500-2000 ft agl increasing to 5000-6500 ft agl. * Transport Winds.......Northeast 10 to 15 mph shifting to the southeast in the afternoon. * CWR...................10 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy. Slight chance of showers and thunderstorms in the evening. * Chance Lightning.......20 percent. * Min Temperature.......48-53. 24 hr trend......1 degree up. * Max Humidity..........89-99 percent. 24 hr trend......Unchanged. * Wind (20 FT). Lower Elevations...South winds around 5 mph. Ridges.............South winds around 5 mph. * Mixing Height.........6000 ft agl decreasing to 500-1500 ft agl. * Transport Winds.......Southeast 15 to 20 mph. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......76-81...69-74 higher elevations. 24 hr trend......3 degrees up. * Min Humidity..........32-42 percent. 24 hr trend......23 percent down...17 percent down higher elevations. * Wind (20 FT). Lower Elevations...South winds around 5 mph. Ridges.............Southwest winds around 5 mph. * Mixing Height.........500-2000 ft agl increasing to 9000 ft agl. * Transport Winds.......Southwest 10 to 15 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Partly cloudy. Slight chance of showers. Lows in the lower 50s. Highs in the mid 70s. Southwest winds 10 to 15 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Northwest winds 10 to 15 mph. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. West winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the lower 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the mid 40s. Highs around 70. $$ MTZ114-132230- Lewis and Clark National Forest Rocky Mountain District- Rocky Mountain Front- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Mostly sunny. Slight chance of showers and thunderstorms in the afternoon. * Chance Lightning.......20 percent. * Max Temperature.......71-78...59-68 higher elevations. 24 hr trend......2 degrees down. * Min Humidity..........32-39 percent...41-51 percent higher elevations. 24 hr trend......4 percent up. * Wind (20 FT). Lower Elevations...Southwest winds around 5 mph shifting to the south in the afternoon. Ridges.............West winds 5 to 10 mph. * Mixing Height.........1000-2500 ft agl increasing to 7500-8500 ft agl. * Transport Winds.......West 10 to 15 mph. * CWR...................0 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy then becoming partly cloudy. Slight chance of showers in the evening. * Chance Lightning.......0 percent. * Min Temperature.......42-49. 24 hr trend......Unchanged. * Max Humidity..........79-89 percent. 24 hr trend......20 percent down...3 percent down higher elevations. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph. * Mixing Height.........7000 ft agl decreasing to 1000-1500 ft agl. * Transport Winds.......West 10 to 15 mph. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. Slight chance of showers in the afternoon. * Chance Lightning.......0 percent. * Max Temperature.......73-80...60-70 higher elevations. 24 hr trend......Unchanged. * Min Humidity..........28-33 percent...35-45 percent higher elevations. 24 hr trend......4 percent down. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph. * Mixing Height.........1000-1500 ft agl increasing to 9500-10000 ft agl. * Transport Winds.......West 15 to 20 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Mostly cloudy with chance of showers. Lows around 50. Highs in the mid 60s. West winds 20 to 25 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Northwest winds 15 to 20 mph. .WEDNESDAY...Mostly clear. Lows in the mid 40s. Highs in the mid 70s. Southwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the lower 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the mid 40s. Highs in the mid 60s. $$ MTZ115-132230- Chouteau and Fergus Counties- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Partly sunny. Patchy fog in the morning. Chance of showers in the morning. Slight chance of thunderstorms through the day. Slight chance of showers in the afternoon. * Chance Lightning.......20 percent. * Max Temperature.......68-78...59-64 higher elevations. 24 hr trend......1 degree down...7 degrees down higher elevations. * Min Humidity..........43-53 percent...59-69 percent higher elevations. 24 hr trend......7 percent up...22 percent up higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds around 5 mph shifting to the southeast in the afternoon. Ridges.............Southeast winds around 5 mph shifting to the northeast in the afternoon. * Mixing Height.........500-2000 ft agl increasing to 6500-7000 ft agl. * Transport Winds.......South 10 to 15 mph. * CWR...................10 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy then becoming partly cloudy. Slight chance of showers in the evening. * Chance Lightning.......0 percent. * Min Temperature.......48-53. 24 hr trend......1 degree down. * Max Humidity..........84-94 percent. 24 hr trend......8 percent down. * Wind (20 FT). Lower Elevations...South winds 5 to 10 mph. Ridges.............South winds around 5 mph shifting to the southwest after midnight. * Mixing Height.........5500 ft agl decreasing to 500-1500 ft agl. * Transport Winds.......South 15 to 20 mph. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......76-82...69-74 higher elevations. 24 hr trend......5 degrees up...10 degrees up higher elevations. * Min Humidity..........28-34 percent. 24 hr trend......17 percent down...31 percent down higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds 5 to 10 mph. Ridges.............Southwest winds 10 to 15 mph shifting to the west in the afternoon. * Mixing Height.........500-1000 ft agl increasing to 8500-9500 ft agl. * Transport Winds.......Southwest 10 to 15 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Partly cloudy. Chance of showers. Lows in the lower 50s. Highs in the mid 70s. West winds 15 to 20 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the lower 50s. Highs around 70. Northwest winds 15 to 20 mph. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the upper 70s. Southwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows around 50. Highs in the mid 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the upper 40s. Highs in the lower 70s. $$ MTZ116-118-132230- Lincoln Ranger District of the Helena National Forest- Helena and Townsend Ranger Districts of the Helena National Forest- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Partly sunny. Slight chance of showers through the day. Slight chance of thunderstorms in the afternoon. * Chance Lightning.......20 percent. * Max Temperature.......67-75...59-68 higher elevations. 24 hr trend......1 degree down. * Min Humidity..........36-46 percent. 24 hr trend......14 percent up. * Wind (20 FT). Lower Elevations...Southwest winds around 5 mph shifting to the south in the afternoon. Ridges.............Northwest winds around 5 mph. * Mixing Height.........1000-2500 ft agl increasing to 6500-8000 ft agl. * Transport Winds.......West 10 to 15 mph. * CWR...................10 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0 percent. * Min Temperature.......41-49. 24 hr trend......Unchanged. * Max Humidity..........78-88 percent. 24 hr trend......6 percent down...4 percent up higher elevations. * Wind (20 FT). Lower Elevations...South winds 5 to 10 mph. Ridges.............Southwest winds 5 to 10 mph. * Mixing Height.........6000 ft agl decreasing to 1000-2500 ft agl. * Transport Winds.......South 10 to 15 mph. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......71-78...62-71 higher elevations. 24 hr trend......2 degrees up. * Min Humidity..........28-38 percent. 24 hr trend......9 percent down. * Wind (20 FT). Lower Elevations...Southwest winds 10 to 15 mph. Ridges.............Southwest winds 10 to 15 mph. * Mixing Height.........1000-1500 ft agl increasing to 9500-10500 ft agl. * Transport Winds.......Southwest 15 to 20 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the lower 60s. West winds 15 to 20 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. Northwest winds 10 to 15 mph. .WEDNESDAY...Mostly clear. Lows in the mid 40s. Highs in the lower 70s. South winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the lower 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the mid 40s. Highs in the upper 60s. $$ MTZ117-132230- Central and Eastern Lewis and Clark National Forest Areas- 148 AM MDT Sat Sep 13 2025 .TODAY... * Sky/Weather...........Partly sunny. Slight chance of showers through the day. Slight chance of thunderstorms in the afternoon. * Chance Lightning.......20 percent. * Max Temperature.......67-77...57-67 higher elevations. 24 hr trend......5 degrees up...6 degrees down higher elevations. * Min Humidity..........36-46 percent...47-57 percent higher elevations. 24 hr trend......1 percent up...17 percent up higher elevations. * Wind (20 FT). Lower Elevations...Southwest winds around 5 mph shifting to the east in the afternoon. Ridges.............Northeast winds around 5 mph shifting to the northwest in the afternoon. * Mixing Height.........1000-2000 ft agl increasing to 8000 ft agl. * Transport Winds.......Southwest 15 to 20 mph shifting to the northwest in the afternoon. * CWR...................10 percent. .TONIGHT... * Sky/Weather...........Mostly cloudy then becoming partly cloudy. Slight chance of showers in the evening. * Chance Lightning.......0 percent. * Min Temperature.......42-51. 24 hr trend......1 degree down. * Max Humidity..........78-88 percent. 24 hr trend......15 percent down...unchanged higher elevations. * Wind (20 FT). Lower Elevations...South winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph shifting to the southwest after midnight. * Mixing Height.........6500 ft agl decreasing to 1000-1500 ft agl. * Transport Winds.......Southwest 15 to 20 mph. * CWR...................0 percent. .SUNDAY... * Sky/Weather...........Mostly sunny. * Chance Lightning.......0 percent. * Max Temperature.......72-81...63-72 higher elevations. 24 hr trend......3 degrees up...9 degrees up higher elevations. * Min Humidity..........25-34 percent. 24 hr trend......4 percent down...18 percent down higher elevations. * Wind (20 FT). Lower Elevations...West winds 10 to 15 mph. Ridges.............West winds 10 to 15 mph. * Mixing Height.........1000-1500 ft agl increasing to 9500-10000 ft agl. * Transport Winds.......West 15 to 20 mph. * CWR...................0 percent. .FORECAST DAYS 3 THROUGH 7...... .MONDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the upper 60s. West winds 15 to 20 mph. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the mid 60s. Northwest winds 10 to 15 mph. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the lower 70s. Southwest winds 10 to 15 mph. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the lower 70s. .FRIDAY...Partly cloudy. Slight chance of showers. Lows in the mid 40s. Highs in the upper 60s. $$ weather.gov/greatfalls