Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
671
FNUS55 KTFX 250917
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
317 AM MDT Fri Sep 25 2026
...Warm temperatures, low humidity and increasing winds today...
...Strong winds with a wind shift this evening...
.DISCUSSION...
A Pacific cold front will move from west to east across the
districts this evening. Ahead of the front, expect increasing
winds, very warm afternoon temperatures and low humidity. Strong
winds expected with the frontal passage this evening. Some
thunderstorms possible near the Canadian border as well. It will
be cooler, with seasonable temperatures starting tomorrow. Brusda
MTZ112-252300-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......78-87...69-76 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........19-27 percent...28-33 percent higher
elevations.
24 hr trend......1 percent down.
* Wind (20 FT).
Lower Elevations...Windy. South winds around 25 mph.
Ridges.............Windy. South winds around 25 mph.
* Mixing Height.........500-2000 ft agl increasing to 9000-10000 ft
agl.
* Transport Winds.......South 30 to 35 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......41-46.
24 hr trend......6 degrees down.
* Max Humidity..........59-69 percent.
24 hr trend......7 percent down...21 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Very windy. West winds 35 to 40 mph.
Ridges.............Very windy. West winds 35 to 40 mph.
* Mixing Height.........2000-3500 ft agl decreasing to 1500 ft agl
after midnight.
* Transport Winds.......West around 45 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......53-62...44-54 higher elevations.
24 hr trend......24 degrees down.
* Min Humidity..........27-37 percent...41-51 percent higher
elevations.
24 hr trend......9 percent up...15 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Windy. West winds 25 to 30 mph.
Ridges.............Very windy. Southwest winds around 35 mph
becoming west around 25 mph in the afternoon.
* Mixing Height.........1500-2500 ft agl increasing to 6000-6500 ft
agl.
* Transport Winds.......West around 45 mph decreasing to around 35
mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Partly cloudy. Lows in the mid 30s. Highs around 60.
Southwest winds 20 to 25 mph.
.MONDAY...Partly cloudy. Lows in the upper 30s. Highs in the
lower 60s. West winds 15 to 20 mph.
.TUESDAY...Windy. Partly cloudy. Lows in the lower 40s. Highs in
the lower 60s. West winds around 30 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 40s. Highs in the
lower 60s.
.THURSDAY...Partly cloudy. Slight chance of rain. Lows in the
lower 40s. Highs in the lower 60s.
$$
MTZ113-252300-
Hill and Blaine Counties-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......80-88...74-79 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........22-32 percent.
24 hr trend......3 percent down...3 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 20 to 25 mph.
Ridges.............Southeast winds 15 to 20 mph.
* Mixing Height.........500-2000 ft agl increasing to 7500-8000 ft
agl.
* Transport Winds.......South around 30 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......10 percent.
* Min Temperature.......47-52...40-47 higher elevations.
24 hr trend......7 degrees down.
* Max Humidity..........50-59 percent.
24 hr trend......Unchanged...6 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Windy. South winds around 30 mph shifting
to the west after midnight.
Ridges.............Windy. South winds around 30 mph shifting
to the west after midnight.
* Mixing Height.........1500-3000 ft agl decreasing to 1000 ft agl
early in the morning.
* Transport Winds.......South around 35 mph shifting to the west
after midnight.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......61-66...53-58 higher elevations.
24 hr trend......22 degrees down.
* Min Humidity..........21-31 percent.
24 hr trend......7 percent up...1 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Windy. West winds 20 to 25 mph.
Ridges.............Windy. West winds around 25 mph decreasing
to 15 to 20 mph in the afternoon.
* Mixing Height.........1000-2500 ft agl increasing to 6000-7500 ft
agl.
* Transport Winds.......West 30 to 35 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Partly cloudy. Lows in the upper 30s. Highs in the mid
60s. West winds 15 to 20 mph.
.MONDAY...Mostly cloudy. Lows in the lower 40s. Highs in the mid
60s. Southwest winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Lows in the lower 40s. Highs in the
upper 60s. Southwest winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid
60s.
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
mid 60s.
$$
MTZ114-252300-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......79-86...64-74 higher elevations.
24 hr trend......2 degrees up.
* Min Humidity..........19-26 percent...27-37 percent higher
elevations.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...South winds 20 to 25 mph.
Ridges.............Windy. Southwest winds 15 to 20 mph
increasing to around 25 mph in the afternoon.
* Mixing Height.........500-1500 ft agl increasing to 8500-10000 ft
agl.
* Transport Winds.......Southwest 30 to 35 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......40-46...33-40 higher elevations.
24 hr trend......9 degrees down...16 degrees down higher
elevations.
* Max Humidity..........56-66 percent...70-80 percent higher
elevations.
24 hr trend......3 percent up...26 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Windy. West winds 30 to 40 mph.
Ridges.............Very windy. West winds 30 to 40 mph.
* Mixing Height.........4500 ft agl decreasing to 1500-2500 ft agl.
* Transport Winds.......West around 50 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Partly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......54-63...40-50 higher elevations.
24 hr trend......23 degrees down.
* Min Humidity..........23-33 percent...39-49 percent higher
elevations.
24 hr trend......2 percent up.
* Wind (20 FT).
Lower Elevations...Windy. Southwest winds around 30 mph
becoming west 20 to 25 mph in the afternoon.
Ridges.............Very windy. West winds around 40 mph
decreasing to around 25 mph in the afternoon.
* Mixing Height.........1500-2000 ft agl increasing to 6000-7000 ft
agl.
* Transport Winds.......West around 50 mph decreasing to around 35
mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly cloudy. Lows in the mid 30s. Highs in the upper
50s. West winds 20 to 25 mph.
.MONDAY...Partly cloudy. Lows in the upper 30s. Highs in the
lower 60s. West winds 15 to 20 mph.
.TUESDAY...Windy. Partly cloudy. Lows in the lower 40s. Highs
around 60. West winds around 30 mph.
.WEDNESDAY...Partly cloudy. Slight chance of rain. Lows in the
lower 40s. Highs around 60.
.THURSDAY...Partly cloudy. Lows around 40. Highs around 60.
$$
MTZ115-252300-
Chouteau and Fergus Counties-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-89...74-80 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........17-27 percent.
24 hr trend......2 percent down.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........500-1500 ft agl increasing to 9500-11000 ft
agl.
* Transport Winds.......South 25 to 30 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......46-52.
24 hr trend......6 degrees down.
* Max Humidity..........49-59 percent.
24 hr trend......14 percent up.
* Wind (20 FT).
Lower Elevations...Windy. West winds around 30 mph.
Ridges.............Windy. Southwest winds around 30 mph
shifting to the northwest after midnight.
* Mixing Height.........1500-3000 ft agl decreasing to 1000 ft agl
early in the morning.
* Transport Winds.......West around 40 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......63-69...56-65 higher elevations.
24 hr trend......22 degrees down...12 degrees down higher
elevations.
* Min Humidity..........19-25 percent.
24 hr trend......3 percent up.
* Wind (20 FT).
Lower Elevations...Windy. West winds around 25 mph.
Ridges.............Windy. West winds 20 to 25 mph.
* Mixing Height.........1000-2500 ft agl increasing to 7500-8000 ft
agl.
* Transport Winds.......West 30 to 35 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Partly cloudy. Lows around 40. Highs in the mid 60s.
Southwest winds 15 to 20 mph.
.MONDAY...Mostly cloudy. Slight chance of rain. Lows in the mid
40s. Highs in the mid 60s. West winds 10 to 15 mph.
.TUESDAY...Windy. Partly cloudy. Lows in the mid 40s. Highs in
the upper 60s. Southwest winds around 25 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 60s.
.THURSDAY...Partly cloudy. Lows in the mid 40s. Highs in the
upper 60s.
$$
MTZ116-118-252300-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-83...66-76 higher elevations.
24 hr trend......2 degrees up.
* Min Humidity..........21-29 percent.
24 hr trend......1 percent up.
* Wind (20 FT).
Lower Elevations...South winds 20 to 25 mph.
Ridges.............South winds 20 to 25 mph.
* Mixing Height.........500-1500 ft agl increasing to 9000-10500 ft
agl.
* Transport Winds.......South 25 to 30 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......36-44.
24 hr trend......7 degrees down.
* Max Humidity..........70-80 percent.
24 hr trend......17 percent up.
* Wind (20 FT).
Lower Elevations...Windy. West winds 25 to 30 mph.
Gusts around 45 mph.
Ridges.............Windy. West winds 25 to 30 mph.
Gusts around 45 mph.
* Mixing Height.........6000 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......West around 40 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Partly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......57-67...47-57 higher elevations.
24 hr trend......17 degrees down.
* Min Humidity..........26-36 percent.
24 hr trend......3 percent up.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............Windy. West winds around 30 mph decreasing
to 20 to 25 mph in the afternoon.
* Mixing Height.........1000-2000 ft agl increasing to 6500-7000 ft
agl.
* Transport Winds.......West 30 to 35 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly cloudy. Lows in the upper 30s. Highs in the
lower 60s. Northwest winds 15 to 20 mph.
.MONDAY...Mostly cloudy. Chance of rain. Lows in the lower 40s.
Highs in the lower 60s. West winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Lows around 40. Highs in the lower 60s.
Southwest winds 20 to 25 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 40s. Highs in the
lower 60s.
.THURSDAY...Partly cloudy. Lows around 40. Highs in the lower
60s.
$$
MTZ117-252300-
Central and Eastern Lewis and Clark National Forest Areas-
317 AM MDT Fri Sep 25 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......78-88...68-78 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........15-25 percent.
24 hr trend......2 percent up.
* Wind (20 FT).
Lower Elevations...Windy. South winds 20 to 25 mph.
Ridges.............South winds 20 to 25 mph.
* Mixing Height.........500-1500 ft agl increasing to 9000-10500 ft
agl.
* Transport Winds.......South around 30 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......38-48.
24 hr trend......9 degrees down.
* Max Humidity..........61-71 percent.
24 hr trend......13 percent up.
* Wind (20 FT).
Lower Elevations...Windy. West winds around
30 mph. Gusts near 50 mph.
Ridges.............Windy. West winds around 30 mph.
Gust around 50 mph.
* Mixing Height.........4500 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......West around 40 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......58-66...51-61 higher elevations.
24 hr trend......14 degrees down.
* Min Humidity..........21-31 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...Windy. West winds 25 to 30 mph.
Ridges.............Windy. West winds 20 to 30 mph.
* Mixing Height.........1000-2000 ft agl increasing to 7000-7500 ft
agl.
* Transport Winds.......West 30 to 35 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly cloudy. Lows in the upper 30s. Highs in the
lower 60s. South winds 15 to 20 mph.
.MONDAY...Mostly cloudy. Chance of rain. Lows in the lower 40s.
Highs in the lower 60s. Southwest winds 10 to 15 mph.
.TUESDAY...Windy. Partly cloudy. Lows in the lower 40s. Highs in
the lower 60s. Southwest winds around 25 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 40s. Highs in the
lower 60s.
.THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the
lower 60s.
$$
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