Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
978
FNUS55 KTFX 311951
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
151 PM MDT Sun Aug 31 2025
.DISCUSSION...
This afternoon through Monday it will be hot and mostly dry. On
Tuesday the Hi-line will be slightly cooler with areas south of
the Hi-Line hot. Each afternoon Tuesday through Friday there will
be isolated rain showers. Tuesday afternoon and evening there
will be isolated thunderstorms. The biggest risk from any
thunderstorm will be frequent lightning and gusty, erratic winds. -IG
MTZ112-011030-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze.
* Chance Lightning.......0 percent.
* Min Temperature.......52-58.
24 hr trend......4 degrees up...1 degree down higher elevations.
* Max Humidity..........55-65 percent.
24 hr trend......1 percent up...12 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 5 to 10 mph.
Ridges.............North winds around 5 mph shifting to the
east after midnight.
* Mixing Height.........10500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Northeast 15 to 20 mph shifting to the east
after midnight.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......84-89...77-82 higher elevations.
24 hr trend......1 degree up.
* Min Humidity..........17-22 percent.
24 hr trend......3 percent down.
* Wind (20 FT).
Lower Elevations...Southeast winds 5 to 10 mph.
Ridges.............Southeast winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 8000-9500 ft
agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy. Slight chance of showers in
the evening.
* Chance Lightning.......0 percent.
* Min Temperature.......52-58.
24 hr trend......1 degree up.
* Max Humidity..........60-70 percent.
24 hr trend......5 percent up.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to BELOW 1000 ft
agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......80-86...73-78 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........27-35 percent.
24 hr trend......9 percent up.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 7000-7500 ft
agl.
* Transport Winds.......Northwest 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. East winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. East winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs around
80.
.SUNDAY...Mostly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the upper 70s.
$$
MTZ113-011030-
Hill and Blaine Counties-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze in the evening.
* Chance Lightning.......0 percent.
* Min Temperature.......52-60.
24 hr trend......1 degree up.
* Max Humidity..........67-77 percent...52-61 percent higher
elevations.
24 hr trend......15 percent down...21 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northwest winds 5 to 10 mph.
Ridges.............North winds 5 to 10 mph.
* Mixing Height.........8000 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......North 10 to 15 mph.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-88...76-81 higher elevations.
24 hr trend......Unchanged.
* Min Humidity..........20-25 percent.
24 hr trend......11 percent down...3 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph.
Ridges.............Northeast winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-8000 ft
agl.
* Transport Winds.......North 10 to 15 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy. Haze after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......54-61.
24 hr trend......2 degrees up.
* Max Humidity..........64-74 percent...53-61 percent higher
elevations.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...East winds around 5 mph.
Ridges.............East winds around 5 mph.
* Mixing Height.........6500 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......78-84...73-78 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........31-41 percent.
24 hr trend......11 percent up.
* Wind (20 FT).
Lower Elevations...East winds around 5 mph shifting to the
north in the afternoon.
Ridges.............South winds around 5 mph shifting to the
north in the afternoon.
* Mixing Height.........500-1500 ft agl increasing to 4500-6000 ft
agl.
* Transport Winds.......South 15 to 20 mph shifting to the north in
the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. Northeast winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the mid 40s. Highs in the
upper 70s.
.SUNDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s.
$$
MTZ114-011030-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze through the night.
* Chance Lightning.......0 percent.
* Min Temperature.......52-58.
24 hr trend......4 degrees up.
* Max Humidity..........54-64 percent...45-54 percent higher
elevations.
24 hr trend......1 percent down.
* Wind (20 FT).
Lower Elevations...North winds around 5 mph.
Ridges.............Northeast winds around 5 mph shifting to
the southeast after midnight.
* Mixing Height.........9500 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......Northeast 10 to 15 mph.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Mostly sunny. Haze through the day. Slight
chance of showers in the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......83-89...70-80 higher elevations.
24 hr trend......1 degree up.
* Min Humidity..........17-26 percent.
24 hr trend......2 percent down.
* Wind (20 FT).
Lower Elevations...Northwest winds around 5 mph shifting to
the east in the afternoon.
Ridges.............Southeast winds 5 to 10 mph.
* Mixing Height.........1000-2000 ft agl increasing to 9500-10500
ft agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy. Haze in the evening. Chance
of showers in the evening.
* Chance Lightning.......0 percent.
* Min Temperature.......52-58.
24 hr trend......2 degrees up.
* Max Humidity..........55-65 percent.
24 hr trend......4 percent up.
* Wind (20 FT).
Lower Elevations...East winds around 5 mph shifting to the
west after midnight.
Ridges.............East winds around 5 mph shifting to the
southwest after midnight.
* Mixing Height.........7500 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......East 15 to 20 mph shifting to the southwest
after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-87...70-80 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........21-31 percent.
24 hr trend......6 percent up...unchanged higher elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph shifting to the
north in the afternoon.
Ridges.............West winds 10 to 15 mph shifting to the
north in the afternoon.
* Mixing Height.........500-1000 ft agl increasing to 10000-11500
ft agl.
* Transport Winds.......Northwest 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. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. North winds 10 to 15 mph.
.FRIDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. Northeast winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s.
.SUNDAY...Mostly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s.
$$
MTZ115-011030-
Chouteau and Fergus Counties-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze through the night.
* Chance Lightning.......0 percent.
* Min Temperature.......54-60.
24 hr trend......4 degrees up.
* Max Humidity..........53-63 percent...42-52 percent higher
elevations.
24 hr trend......15 percent down.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph shifting to
the southwest after midnight.
Ridges.............North winds around 5 mph shifting to the
southwest after midnight.
* Mixing Height.........9000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Northeast 15 to 20 mph shifting to the
south after midnight.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Sunny. Haze in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......84-90...75-82 higher elevations.
24 hr trend......1 degree up.
* Min Humidity..........18-23 percent.
24 hr trend......3 percent down.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
east in the afternoon.
Ridges.............Northeast winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-8500 ft
agl.
* Transport Winds.......East 10 to 15 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......55-61.
24 hr trend......1 degree down.
* Max Humidity..........56-66 percent...47-57 percent higher
elevations.
24 hr trend......5 percent up.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........6500 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-88...75-82 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........24-29 percent.
24 hr trend......7 percent up.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
north in the afternoon.
Ridges.............South winds around 5 mph shifting to the
northwest in the afternoon.
* Mixing Height.........500-2000 ft agl increasing to 4000-5500 ft
agl late in the morning, then increasing to 7500-9000 ft agl
early in the afternoon increasing to 9000-9500 ft agl late in the
afternoon decreasing to 7500 ft agl.
* Transport Winds.......Southwest 15 to 20 mph shifting to the
northwest in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the
upper 70s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs around
80. Northwest winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Northeast winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs around
80.
.SUNDAY...Mostly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs around 80.
$$
MTZ116-118-011030-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze.
* Chance Lightning.......0 percent.
* Min Temperature.......51-59.
24 hr trend......4 degrees up.
* Max Humidity..........43-53 percent.
24 hr trend......9 percent down.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds around 5 mph shifting to the
southeast after midnight.
* Mixing Height.........8500 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......East 10 to 15 mph.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Mostly sunny. Haze.
* Chance Lightning.......0 percent.
* Max Temperature.......82-89...73-82 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........15-21 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.........1000-2000 ft agl increasing to 11000-11500
ft agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......52-59.
24 hr trend......1 degree down.
* Max Humidity..........48-58 percent.
24 hr trend......4 percent up.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph shifting to the
southeast after midnight.
* Mixing Height.........9500 ft agl decreasing to 1000 ft agl.
* Transport Winds.......East 20 to 25 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......81-89...72-81 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........18-24 percent.
24 hr trend......4 percent up.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
north in the afternoon.
Ridges.............South winds 10 to 15 mph shifting to the
north in the afternoon.
* Mixing Height.........1000-2500 ft agl increasing to 11500-12000
ft agl.
* Transport Winds.......Southwest 10 to 15 mph increasing to
northwest 20 to 25 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs around
80. North winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
Northeast winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.SUNDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
$$
MTZ117-011030-
Central and Eastern Lewis and Clark National Forest Areas-
151 PM MDT Sun Aug 31 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze.
* Chance Lightning.......0 percent.
* Min Temperature.......51-59.
24 hr trend......3 degrees up.
* Max Humidity..........51-61 percent...41-51 percent higher
elevations.
24 hr trend......16 percent down.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph shifting to
the south after midnight.
Ridges.............Northeast winds 10 to 15 mph shifting to
the south after midnight.
* Mixing Height.........8500 ft agl decreasing to 1000 ft agl.
* Transport Winds.......Northeast 10 to 15 mph shifting to the
south after midnight.
* CWR...................0 percent.
.LABOR DAY...
* Sky/Weather...........Mostly sunny. Haze through the day. Slight
chance of showers in the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......82-90...72-82 higher elevations.
24 hr trend......5 degrees up.
* Min Humidity..........17-25 percent.
24 hr trend......2 percent down.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
east in the afternoon.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........1000 ft agl increasing to 10000-11000 ft
agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.
.MONDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......51-59.
24 hr trend......1 degree down.
* Max Humidity..........52-62 percent.
24 hr trend......9 percent up.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-88...72-81 higher elevations.
24 hr trend......Unchanged.
* Min Humidity..........20-26 percent.
24 hr trend......4 percent up.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph shifting to
the northwest in the afternoon.
Ridges.............Southwest winds 10 to 15 mph shifting to
the northwest in the afternoon.
* Mixing Height.........500-1000 ft agl increasing to 10500-11500
ft agl.
* Transport Winds.......Southwest 15 to 20 mph increasing to
northwest around 25 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Northeast winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s.
.SUNDAY...Mostly cloudy. Chance of showers. Lows in the lower
50s. Highs in the mid 70s.
$$
weather.gov/greatfalls