Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
838
FNUS55 KTFX 110818
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
218 AM MDT Mon Aug 11 2025
.DISCUSSION...
Northwest flow aloft will prevail across the Northern Rockies
through this evening, with a weak cold front advancing south and
across North Central and portions of Central Montana through the
morning hours. Isolated to widely scattered showers and
thunderstorms will develop along and behind this cold front, in
addition to over the higher terrain as far south as the I-90
corridor, with showers and storms lingering into the early evening
hours tonight. Upper level ridging over the Pacific Northwest
will begin to breakdown late tonight, with increasing zonal flow
developing over the Northern Rockies on Tuesday and Wednesday.
This will translate to increasing west surface winds, drier
conditions, and above normal temperatures across all fire weather
zones. - Moldan
MTZ112-112230-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms.
* Chance Lightning.......20 percent.
* Max Temperature.......69-77...62-69 higher elevations.
24 hr trend......12 degrees down.
* Min Humidity..........43-53 percent...53-62 percent higher
elevations.
24 hr trend......16 percent up...21 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 15 to 20 mph.
Ridges.............North winds 15 to 20 mph.
* Mixing Height.........500-2000 ft agl increasing to 5000-6000 ft
agl.
* Transport Winds.......North around 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......50-57.
24 hr trend......3 degrees down.
* Max Humidity..........83-93 percent.
24 hr trend......9 percent up...14 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph shifting to
the southeast after midnight.
Ridges.............North winds 10 to 15 mph shifting to the
southeast after midnight.
* Mixing Height.........5000-6000 ft agl decreasing to 500-1000 ft
agl.
* Transport Winds.......Northeast 20 to 25 mph shifting to the east
after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-88...75-80 higher elevations.
24 hr trend......16 degrees up...11 degrees up higher
elevations.
* Min Humidity..........26-33 percent.
24 hr trend......18 percent down...25 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 10000 ft agl.
* Transport Winds.......South 20 to 25 mph shifting to the
southwest in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds 20 to 25 mph.
.THURSDAY...Not as warm. Partly cloudy. Slight chance of showers
and thunderstorms. Lows around 50. Highs around 70. Northwest
winds 20 to 25 mph.
.FRIDAY...Mostly cloudy. Lows in the upper 40s. Highs in the mid
70s. Southeast winds 15 to 20 mph.
.SATURDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the mid 70s.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
$$
MTZ113-112230-
Hill and Blaine Counties-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms in the morning.
* Chance Lightning.......20 percent.
* Max Temperature.......73-78...65-70 higher elevations.
24 hr trend......8 degrees down...1 degree down higher
elevations.
* Min Humidity..........41-51 percent.
24 hr trend......14 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds 15 to 20 mph.
Ridges.............Northwest winds 15 to 20 mph.
* Mixing Height.........500-2000 ft agl increasing to 5000-6500 ft
agl.
* Transport Winds.......Northwest 25 to 30 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......47-57.
24 hr trend......2 degrees down.
* Max Humidity..........85-95 percent.
24 hr trend......4 percent down...7 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 15 to 20 mph becoming northeast
around 5 mph after midnight.
Ridges.............North winds 15 to 20 mph becoming east
around 5 mph after midnight.
* Mixing Height.........5000-6500 ft agl decreasing to 500-2000 ft
agl early in the evening.
* Transport Winds.......North around 25 mph decreasing to 10 to 15
mph after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......80-87...75-80 higher elevations.
24 hr trend......11 degrees up.
* Min Humidity..........34-44 percent.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 6500-7000 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs around 90.
South winds 10 to 15 mph.
.THURSDAY...Not as warm. Mostly clear. Lows in the lower 50s.
Highs in the lower 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. East winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs around 80.
.SUNDAY...Partly cloudy. Lows in the mid 50s. Highs in the lower
80s.
$$
MTZ114-112230-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms.
* Chance Lightning.......20 percent.
* Max Temperature.......73-79...62-72 higher elevations.
24 hr trend......6 degrees down.
* Min Humidity..........44-54 percent.
24 hr trend......19 percent up...10 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 5500-6000 ft
agl.
* Transport Winds.......North 15 to 20 mph.
* CWR...................10 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......47-54.
24 hr trend......6 degrees down.
* Max Humidity..........86-94 percent.
24 hr trend......24 percent up...17 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph shifting to
the southwest after midnight.
Ridges.............East winds 10 to 15 mph shifting to the
southeast after midnight.
* Mixing Height.........4500-5000 ft agl decreasing to 1000-2500 ft
agl early in the evening.
* Transport Winds.......East 15 to 20 mph.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......84-90...71-81 higher elevations.
24 hr trend......11 degrees up.
* Min Humidity..........23-33 percent.
24 hr trend......21 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 10000-11000
ft agl.
* Transport Winds.......South 15 to 20 mph increasing to west
around 25 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Windy. Mostly clear. Lows in the mid 50s. Highs in
the mid 80s. West winds around 25 mph.
.THURSDAY...Not as warm. Partly cloudy. Lows in the lower 50s.
Highs in the lower 70s. West winds 20 to 25 mph.
.FRIDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. West winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
$$
MTZ115-112230-
Chouteau and Fergus Counties-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms in the morning.
* Chance Lightning.......20 percent.
* Max Temperature.......75-80...67-74 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........38-48 percent.
24 hr trend......12 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds 15 to 20 mph.
Ridges.............Northwest winds 15 to 20 mph.
* Mixing Height.........500-2000 ft agl increasing to 5500-6000 ft
agl.
* Transport Winds.......Northwest around 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......54-59.
24 hr trend......2 degrees down.
* Max Humidity..........79-89 percent.
24 hr trend......11 percent up.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph shifting to the
southeast after midnight.
Ridges.............North winds 10 to 15 mph shifting to the
southeast after midnight.
* Mixing Height.........5000-6000 ft agl decreasing to 500-1500 ft
agl early in the evening.
* Transport Winds.......North around 25 mph becoming east 15 to 20
mph after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......84-90...76-82 higher elevations.
24 hr trend......11 degrees up.
* Min Humidity..........29-36 percent.
24 hr trend......10 percent down.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-9000 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 90s. Southwest winds 15 to 20 mph.
.THURSDAY...Not as warm. Mostly clear. Lows in the mid 50s. Highs
in the upper 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. East winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the lower 80s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
$$
MTZ116-118-112230-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-85...67-76 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........34-44 percent.
24 hr trend......9 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds 10 to 15 mph.
Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 9000-9500 ft
agl.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......49-55.
24 hr trend......1 degree down.
* Max Humidity..........78-88 percent.
24 hr trend......11 percent up...22 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph.
Ridges.............North winds 10 to 15 mph shifting to the
southeast after midnight.
* Mixing Height.........8000 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......North 15 to 20 mph shifting to the east
after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-91...73-83 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........20-29 percent.
24 hr trend......10 percent down...16 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
west in the afternoon.
Ridges.............South winds 10 to 15 mph shifting to the
west in the afternoon.
* Mixing Height.........1000-2000 ft agl increasing to 9500-11000
ft agl.
* Transport Winds.......South 15 to 20 mph shifting to the west in
the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds 15 to 20 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
West winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs around 80.
$$
MTZ117-112230-
Central and Eastern Lewis and Clark National Forest Areas-
218 AM MDT Mon Aug 11 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms.
* Chance Lightning.......20 percent.
* Max Temperature.......74-80...65-74 higher elevations.
24 hr trend......6 degrees down...1 degree up higher elevations.
* Min Humidity..........39-49 percent.
24 hr trend......11 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds 15 to 20 mph.
Ridges.............Northwest winds 15 to 20 mph.
* Mixing Height.........1000-1500 ft agl increasing to 7000-7500 ft
agl.
* Transport Winds.......Northwest around 25 mph.
* CWR...................0 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......47-55.
24 hr trend......4 degrees down.
* Max Humidity..........81-91 percent.
24 hr trend......28 percent up...16 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 10 to 15 mph shifting to
the southeast after midnight.
Ridges.............Northeast winds 10 to 15 mph shifting to
the southeast after midnight.
* Mixing Height.........4500-5500 ft agl decreasing to 1000-2000 ft
agl early in the evening.
* Transport Winds.......Northeast 20 to 25 mph shifting to the
southeast after midnight.
* CWR...................0 percent.
.TUESDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-91...73-83 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........23-33 percent.
24 hr trend......16 percent down...22 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph shifting to the
southwest in the afternoon.
* Mixing Height.........1000-1500 ft agl increasing to 9500-10500
ft agl.
* Transport Winds.......South 20 to 25 mph shifting to the west in
the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds 20 to 25 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. West winds 20 to 25 mph.
.FRIDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
South winds 15 to 20 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.SUNDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs around 80.
$$
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