Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
559
FNUS55 KTFX 211936
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
136 PM MDT Thu Aug 21 2025
.DISCUSSION...
A passing cold front will keep the region on the cooler side of
normal for a few days. A stray shower near terrain cannot be ruled
out this afternoon into tonight, with that chance being less than
10%. Otherwise the next few days are looking dry. Temperatures trend
closer to normal early next week, with low-end shower/thunderstorm
chances beginning to increase in far southern districts by Monday
and Tuesday. -AM
MTZ112-221015-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-52.
24 hr trend......1 degree up.
* Max Humidity..........58-68 percent.
24 hr trend......43 percent down...32 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph.
* Mixing Height.........6000-7500 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......69-75...62-67 higher elevations.
24 hr trend......8 degrees down.
* Min Humidity..........32-38 percent.
24 hr trend......6 percent up...12 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5000-6500 ft
agl.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......44-49.
24 hr trend......3 degrees down.
* Max Humidity..........72-82 percent.
24 hr trend......19 percent up...10 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...East winds 5 to 10 mph.
Ridges.............East winds 5 to 10 mph.
* Mixing Height.........5000-6000 ft agl decreasing to 500-1500 ft
agl early in the evening.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-80...68-73 higher elevations.
24 hr trend......10 degrees up.
* Min Humidity..........27-32 percent.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 7000 ft agl.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
70s. East winds 15 to 20 mph.
.MONDAY...Mostly clear. Lows around 50. Highs around 80.
Southeast winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. Southeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s.
.THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 80s.
$$
MTZ113-221015-
Hill and Blaine Counties-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......47-54.
24 hr trend......Unchanged.
* Max Humidity..........58-68 percent.
24 hr trend......31 percent down...20 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph.
* Mixing Height.........5500-6500 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......North 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-75...63-69 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........34-44 percent.
24 hr trend......3 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds 10 to 15 mph.
Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 5000-6500 ft
agl.
* Transport Winds.......North 20 to 25 mph.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......45-51.
24 hr trend......4 degrees down.
* Max Humidity..........78-88 percent.
24 hr trend......15 percent up...9 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 5 to 10 mph.
Ridges.............Northeast winds 5 to 10 mph.
* Mixing Height.........5000-6000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......73-79...67-72 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........28-37 percent.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...East winds 5 to 10 mph.
Ridges.............East winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 5500-7000 ft
agl.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. East winds 10 to 15 mph.
.MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
70s. East winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
Southeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
80s.
.THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
80s.
$$
MTZ114-221015-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......42-52.
24 hr trend......2 degrees up...3 degrees down higher
elevations.
* Max Humidity..........58-68 percent.
24 hr trend......26 percent down...2 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............Northeast winds 10 to 15 mph.
* Mixing Height.........5500-7000 ft agl decreasing to 1000-2000 ft
agl early in the evening.
* Transport Winds.......Northeast 15 to 20 mph increasing to around
25 mph after midnight.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-75...57-67 higher elevations.
24 hr trend......7 degrees down.
* Min Humidity..........31-36 percent...36-46 percent higher
elevations.
24 hr trend......6 percent up...18 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............Northeast winds 15 to 20 mph shifting to
the east in the afternoon.
* Mixing Height.........1000-2000 ft agl increasing to 5000-6000 ft
agl.
* Transport Winds.......Northeast around 25 mph becoming east 15 to
20 mph in the afternoon.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......43-48.
24 hr trend......6 degrees down...1 degree up higher elevations.
* Max Humidity..........70-80 percent.
24 hr trend......18 percent up...5 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph shifting to
the north after midnight.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........4500-5500 ft agl decreasing to 1000-1500 ft
agl early in the evening.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-81...65-75 higher elevations.
24 hr trend......7 degrees up.
* Min Humidity..........27-32 percent...31-41 percent higher
elevations.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5500-6500 ft
agl.
* Transport Winds.......East 10 to 15 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
70s. Northeast winds 10 to 15 mph.
.MONDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
Northeast winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Lows in the lower 50s. Highs around 80.
East winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
$$
MTZ115-221015-
Chouteau and Fergus Counties-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
Slight chance of showers after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......52-57.
24 hr trend......2 degrees down.
* Max Humidity..........58-68 percent.
24 hr trend......31 percent down...13 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............Northeast winds 5 to 10 mph.
* Mixing Height.........5500-6500 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......71-77...63-69 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........30-39 percent.
24 hr trend......5 percent up.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5500-6500 ft
agl.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......48-53.
24 hr trend......4 degrees down.
* Max Humidity..........68-78 percent.
24 hr trend......15 percent up...5 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............Northeast winds 10 to 15 mph shifting to
the southeast after midnight.
* Mixing Height.........5000-6500 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-82...67-74 higher elevations.
24 hr trend......5 degrees up.
* Min Humidity..........29-35 percent...35-44 percent higher
elevations.
24 hr trend......5 percent down...unchanged higher elevations.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 5500-7000 ft
agl.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. East winds 15 to 20 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
East winds 15 to 20 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
80s. Southeast winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
80s.
.THURSDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s.
$$
MTZ116-118-221015-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Mostly clear. Haze in the evening.
* Chance Lightning.......0 percent.
* Min Temperature.......46-54.
24 hr trend......2 degrees down.
* Max Humidity..........65-75 percent.
24 hr trend......2 percent up.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph increasing to
northeast 20 to 25 mph after midnight.
* Mixing Height.........8500 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......Northeast 20 to 25 mph.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......72-81...62-72 higher elevations.
24 hr trend......3 degrees down...10 degrees down higher
elevations.
* Min Humidity..........30-40 percent.
24 hr trend......6 percent up...15 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 15 to 20 mph.
Ridges.............North winds 20 to 25 mph becoming northeast
10 to 15 mph in the afternoon.
* Mixing Height.........1000-2500 ft agl increasing to 5500-7000 ft
agl.
* Transport Winds.......Northeast 20 to 25 mph.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-51.
24 hr trend......4 degrees down.
* Max Humidity..........67-77 percent.
24 hr trend......11 percent up...2 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 15 to 20 mph.
Ridges.............Northeast winds 15 to 20 mph.
* Mixing Height.........6500 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......East around 25 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......78-85...68-78 higher elevations.
24 hr trend......5 degrees up...10 degrees up higher elevations.
* Min Humidity..........21-31 percent.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 6000-7000 ft
agl.
* Transport Winds.......East 15 to 20 mph shifting to the north in
the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
Northeast winds 15 to 20 mph.
.MONDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Northeast winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
East winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 70s.
$$
MTZ117-221015-
Central and Eastern Lewis and Clark National Forest Areas-
136 PM MDT Thu Aug 21 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Slight chance of showers
after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......47-54.
24 hr trend......3 degrees down.
* Max Humidity..........64-74 percent.
24 hr trend......26 percent down...2 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................0 percent.
.FRIDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......70-76...60-70 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........30-37 percent...36-46 percent higher
elevations.
24 hr trend......11 percent up.
* Wind (20 FT).
Lower Elevations...Northeast winds 15 to 20 mph.
Ridges.............Northeast winds 15 to 20 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5000-6000 ft
agl.
* Transport Winds.......East 20 to 25 mph.
* CWR...................0 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......43-50.
24 hr trend......4 degrees down.
* Max Humidity..........67-77 percent.
24 hr trend......22 percent up...1 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........4000-5500 ft agl decreasing to 1000 ft agl
early in the evening.
* Transport Winds.......East 20 to 25 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-83...66-75 higher elevations.
24 hr trend......7 degrees up.
* Min Humidity..........26-36 percent.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph shifting to
the east in the afternoon.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5500-6500 ft
agl.
* Transport Winds.......Southeast 15 to 20 mph shifting to the east
in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. East winds 15 to 20 mph.
.MONDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s. Southeast winds 15 to 20 mph.
.TUESDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
Southeast winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.THURSDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the upper 70s.
$$
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