Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
788
FNUS55 KTFX 210929
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
329 AM MDT Mon Sep 21 2026
.DISCUSSION...
High pressure centered over the region today will bring mainly
clear and dry conditions this afternoon with light winds. Mild
and dry conditions persist through Thursday under a developing
southwest flow aloft with a cold front likely to bring windy
conditions Friday and cooler temperatures for the weekend.
MTZ112-212300-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Mostly sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......73-78...66-72 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........29-39 percent.
24 hr trend......7 percent down...19 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 5000-5500 ft
agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......44-49.
24 hr trend......1 degree down.
* Max Humidity..........71-81 percent...59-69 percent higher
elevations.
24 hr trend......27 percent down...14 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........3000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......73-79...65-71 higher elevations.
24 hr trend......2 degrees up.
* Min Humidity..........26-32 percent.
24 hr trend......2 percent down...5 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 7000-8500 ft
agl.
* Transport Winds.......Southwest 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds 15 to 20 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. Southwest winds 15 to 20 mph.
.FRIDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s.
South winds 20 to 25 mph.
.SATURDAY...Cooler. Mostly cloudy. Slight chance of rain. Lows in
the lower 40s. Highs in the upper 50s.
.SUNDAY...Mostly cloudy. Lows in the upper 30s. Highs in the
upper 50s.
$$
MTZ113-212300-
Hill and Blaine Counties-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Mostly sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......69-77...64-69 higher elevations.
24 hr trend......9 degrees up.
* Min Humidity..........43-53 percent.
24 hr trend......24 percent down...9 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 15 to 20 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 3000-4500 ft
agl in the afternoon.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......46-51.
24 hr trend......1 degree up.
* Max Humidity..........88-98 percent.
24 hr trend......Unchanged...7 percent down higher elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 15 to 20 mph.
Ridges.............Southeast winds 15 to 20 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-80...68-73 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........32-42 percent.
24 hr trend......9 percent down...15 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds around 5 mph shifting to the
southwest in the afternoon.
* Mixing Height.........500-2000 ft agl increasing to 5500-6000 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the upper
70s. Southwest winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows around 50. Highs around 80. South
winds 10 to 15 mph.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s. Southeast winds 15 to 20 mph.
.SATURDAY...Cooler. Partly cloudy. Slight chance of rain. Lows in
the upper 40s. Highs in the mid 60s.
.SUNDAY...Partly cloudy. Slight chance of rain. Lows in the lower
40s. Highs in the lower 60s.
$$
MTZ114-212300-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......74-79...61-71 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........25-30 percent...29-39 percent higher
elevations.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 4500-6000 ft
agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......43-48.
24 hr trend......2 degrees up.
* Max Humidity..........60-70 percent.
24 hr trend......19 percent down...12 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......74-80...60-70 higher elevations.
24 hr trend......Unchanged.
* Min Humidity..........25-30 percent...32-42 percent higher
elevations.
24 hr trend......2 percent down...3 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 4000-5500 ft
agl late in the morning, then increasing to 7500 ft agl early in
the afternoon increasing to 9000-9500 ft agl early in the
afternoon decreasing to 7000 ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. West winds 15 to 20 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. Southwest winds 15 to 20 mph.
.FRIDAY...Windy. Partly cloudy. Lows around 50. Highs around 70.
Southwest winds around 25 mph.
.SATURDAY...Cooler. Mostly cloudy. Slight chance of rain. Lows in
the lower 40s. Highs in the mid 50s.
.SUNDAY...Mostly cloudy. Lows in the upper 30s. Highs in the
upper 50s.
$$
MTZ115-212300-
Chouteau and Fergus Counties-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Mostly sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......72-79...65-71 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........34-44 percent.
24 hr trend......6 percent down...29 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 4500-5000 ft
agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-50.
24 hr trend......Unchanged.
* Max Humidity..........79-89 percent.
24 hr trend......8 percent down...20 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 15 to 20 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........3000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......77-82...69-76 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........26-34 percent.
24 hr trend......7 percent down...12 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 5 to 10 mph.
Ridges.............South winds around 5 mph shifting to the
northeast in the afternoon.
* Mixing Height.........500-2000 ft agl increasing to 6000-7500 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Southwest winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. South winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
South winds 15 to 20 mph.
.SATURDAY...Cooler. Partly cloudy. Slight chance of rain. Lows in
the upper 40s. Highs in the mid 60s.
.SUNDAY...Partly cloudy. Slight chance of rain. Lows in the lower
40s. Highs in the mid 60s.
$$
MTZ116-118-212300-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......68-75...60-69 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........33-43 percent.
24 hr trend......3 percent down...9 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 4500-5000 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......42-48.
24 hr trend......2 degrees up.
* Max Humidity..........69-79 percent...59-69 percent higher
elevations.
24 hr trend......4 percent down...14 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph shifting to the
southwest after midnight.
* Mixing Height.........3500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-76...61-70 higher elevations.
24 hr trend......1 degree up.
* Min Humidity..........30-40 percent.
24 hr trend......2 percent down...3 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............South winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 3000-4500 ft
agl late in the morning, then increasing to 6500-8000 ft agl in
the afternoon decreasing to 6000 ft agl late in the afternoon.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. South winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the lower 70s.
South winds 20 to 25 mph.
.SATURDAY...Cooler. Partly cloudy. Slight chance of rain. Lows in
the mid 40s. Highs in the lower 60s.
.SUNDAY...Partly cloudy. Slight chance of rain. Lows around 40.
Highs in the lower 60s.
$$
MTZ117-212300-
Central and Eastern Lewis and Clark National Forest Areas-
329 AM MDT Mon Sep 21 2026
.TODAY...
* Sky/Weather...........Mostly sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......70-80...61-71 higher elevations.
24 hr trend......14 degrees up...6 degrees up higher elevations.
* Min Humidity..........29-39 percent.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 5000-5500 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......40-50.
24 hr trend......1 degree down.
* Max Humidity..........67-77 percent.
24 hr trend......12 percent down...7 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......72-81...63-73 higher elevations.
24 hr trend......12 degrees up.
* Min Humidity..........24-33 percent.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...Southwest winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........500-2000 ft agl increasing to 7500-9000 ft
agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds 15 to 20 mph.
.THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s. South winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. South winds 20 to 25 mph.
.SATURDAY...Cooler. Partly cloudy. Slight chance of rain. Lows in
the mid 40s. Highs in the lower 60s.
.SUNDAY...Mostly cloudy. Slight chance of rain. Lows in the upper
30s. Highs in the lower 60s.
$$
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