Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
476
FNUS55 KTFX 281951
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
151 PM MDT Thu Aug 28 2025
.DISCUSSION...
This afternoon through most of Friday it will be cool with
scattered showers. Additionally this afternoon and Friday
afternoon there will be isolated thunderstorms. Any thunderstorm
will produce frequent lightning, heavy rain, and gusty, erratic
winds. There is a 20 - 50% chance for a quarter inch
of rain or greater on Friday across the districts. Saturday
through Monday it will warm up with mostly dry weather. -IG
MTZ112-291045-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of
thunderstorms in the evening. Chance of showers through the
night.
* Chance Lightning.......20 percent.
* Min Temperature.......52-58.
24 hr trend......Unchanged.
* Max Humidity..........81-91 percent.
24 hr trend......17 percent up...30 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds around 5 mph.
Ridges.............Southeast winds around 5 mph.
* Mixing Height.........2500-4000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......South 15 to 20 mph shifting to the
northwest after midnight.
* CWR...................10 percent.
.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......69-74...62-68 higher elevations.
24 hr trend......6 degrees down...1 degree up higher elevations.
* Min Humidity..........53-63 percent.
24 hr trend......21 percent up...3 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds 5 to 10 mph.
Ridges.............East winds around 5 mph.
* Mixing Height.........1000-2500 ft agl increasing to 3000-4000 ft
agl late in the morning.
* Transport Winds.......Northeast 10 to 15 mph.
* CWR...................20 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers in the evening.
* Chance Lightning.......0 percent.
* Min Temperature.......47-53.
24 hr trend......8 degrees down...3 degrees down higher
elevations.
* Max Humidity..........89-99 percent...79-89 percent higher
elevations.
24 hr trend......13 percent up...15 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds around 5 mph shifting to
the southwest after midnight.
Ridges.............Southeast winds around 5 mph shifting to
the southwest after midnight.
* Mixing Height.........3000-4000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......West 10 to 15 mph.
* CWR...................0 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......79-84...71-76 higher elevations.
24 hr trend......11 degrees up.
* Min Humidity..........26-33 percent.
24 hr trend......30 percent down...18 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-1000 ft agl increasing to 9500-10000 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
80s. West winds 10 to 15 mph.
.LABOR DAY...Mostly clear. Lows in the lower 50s. Highs in the
mid 80s. Southeast winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the upper 70s. North winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the upper
70s.
.THURSDAY...Partly cloudy. Lows around 50. Highs in the lower
80s.
$$
MTZ113-291045-
Hill and Blaine Counties-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of
thunderstorms in the evening. Chance of showers through the
night.
* Chance Lightning.......20 percent.
* Min Temperature.......56-61.
24 hr trend......1 degree up.
* Max Humidity..........81-91 percent.
24 hr trend......14 percent up...34 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph shifting to
the northwest after midnight.
Ridges.............Southeast winds around 5 mph.
* Mixing Height.........5500 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................10 percent.
.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers through
the day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......72-77...65-70 higher elevations.
24 hr trend......6 degrees down.
* Min Humidity..........61-71 percent.
24 hr trend......33 percent up.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph.
Ridges.............Northeast winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 2500-4000 ft
agl late in the morning.
* Transport Winds.......North 10 to 15 mph.
* CWR...................20 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of
thunderstorms in the evening. Chance of showers through the
night.
* Chance Lightning.......20 percent.
* Min Temperature.......53-58...47-55 higher elevations.
24 hr trend......3 degrees down.
* Max Humidity..........89-99 percent.
24 hr trend......11 percent up.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph shifting to
the south after midnight.
Ridges.............East winds around 5 mph shifting to the
southwest after midnight.
* Mixing Height.........2500-3000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......Northeast 15 to 20 mph shifting to the west
after midnight.
* CWR...................10 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......78-83...69-74 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........37-47 percent.
24 hr trend......22 percent down...27 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds around 5 mph.
Ridges.............Southwest winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 9000 ft agl.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. South winds around 5 mph.
.LABOR DAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Northeast winds around 5 mph.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 50s. Highs in the upper 70s. Northeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s.
$$
MTZ114-291045-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of
thunderstorms in the evening. Chance of showers through the
night.
* Chance Lightning.......20 percent.
* Min Temperature.......48-56.
24 hr trend......3 degrees down.
* Max Humidity..........89-99 percent.
24 hr trend......23 percent up...16 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds around 5 mph.
Ridges.............West winds around 5 mph.
* Mixing Height.........1500-3000 ft agl decreasing to 1000 ft agl
in the late evening and overnight.
* Transport Winds.......West 10 to 15 mph.
* CWR...................20 percent.
.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers through
the day. Chance of thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......69-74...57-67 higher elevations.
24 hr trend......2 degrees up.
* Min Humidity..........54-63 percent...62-72 percent higher
elevations.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...Northwest winds around 5 mph shifting to
the north in the afternoon.
Ridges.............West winds around 5 mph shifting to the
north in the afternoon.
* Mixing Height.........1000-2500 ft agl increasing to 3000-4000 ft
agl late in the morning.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................30 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......45-52.
24 hr trend......5 degrees down.
* Max Humidity..........86-96 percent.
24 hr trend......6 percent up...12 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northwest winds around 5 mph shifting to
the southwest after midnight.
Ridges.............Northwest winds around 5 mph shifting to
the west after midnight.
* Mixing Height.........2500-3000 ft agl decreasing to 1000 ft agl
early in the evening.
* Transport Winds.......Northwest 10 to 15 mph shifting to the west
after midnight.
* CWR...................10 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......77-84...64-74 higher elevations.
24 hr trend......9 degrees up.
* Min Humidity..........25-30 percent...30-40 percent higher
elevations.
24 hr trend......29 percent down.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-1500 ft agl increasing to 9000-10000
ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the lower
80s. West winds 10 to 15 mph.
.LABOR DAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. East winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. North winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Partly cloudy. Lows around 50. Highs in the upper
70s.
$$
MTZ115-291045-
Chouteau and Fergus Counties-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Showers likely in the
evening. Slight chance of thunderstorms through the night. Chance
of showers after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......56-61.
24 hr trend......4 degrees down.
* Max Humidity..........86-96 percent.
24 hr trend......33 percent up...25 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 5 to 10 mph.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........5000 ft agl decreasing to 1000 ft agl.
* Transport Winds.......Southwest 15 to 20 mph shifting to the
northwest after midnight.
* CWR...................30 percent.
.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers through
the day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......70-77...62-68 higher elevations.
24 hr trend......4 degrees down.
* Min Humidity..........61-71 percent...73-83 percent higher
elevations.
24 hr trend......24 percent up.
* Wind (20 FT).
Lower Elevations...Northwest winds around 5 mph shifting to
the north in the afternoon.
Ridges.............Northwest winds around 5 mph.
* Mixing Height.........1000-2500 ft agl increasing to 3000-4500 ft
agl in the afternoon.
* Transport Winds.......North 10 to 15 mph shifting to the
northeast in the afternoon.
* CWR...................40 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......52-57.
24 hr trend......3 degrees down.
* Max Humidity..........89-99 percent.
24 hr trend......8 percent up...1 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph shifting to
the southwest after midnight.
Ridges.............South winds around 5 mph shifting to the
southwest after midnight.
* Mixing Height.........2000-3000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................10 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......76-84...68-74 higher elevations.
24 hr trend......7 degrees up.
* Min Humidity..........31-41 percent...42-49 percent higher
elevations.
24 hr trend......30 percent down.
* Wind (20 FT).
Lower Elevations...West winds around 5 mph.
Ridges.............West winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 8000-9000 ft
agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southwest winds 10 to 15 mph.
.LABOR DAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. Southeast winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 50s. Highs around 80. Northeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s.
$$
MTZ116-118-291045-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Showers likely and chance of
thunderstorms in the evening, then slight chance of showers and
thunderstorms after midnight.
* Chance Lightning.......50 percent.
* Min Temperature.......48-55.
24 hr trend......3 degrees down.
* Max Humidity..........87-97 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...Southwest winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........1000-2500 ft agl.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................20 percent.
.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
day. Chance of thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......68-75...59-68 higher elevations.
24 hr trend......5 degrees up.
* Min Humidity..........48-58 percent.
24 hr trend......37 percent down...25 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds around 5 mph shifting to
the northwest in the afternoon.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5500-6500 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................10 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......47-54.
24 hr trend......1 degree down.
* Max Humidity..........79-89 percent.
24 hr trend......14 percent down...9 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...North winds 10 to 15 mph shifting to the
west after midnight.
Ridges.............Northwest winds 10 to 15 mph shifting to
the west after midnight.
* Mixing Height.........4500 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......North 15 to 20 mph shifting to the west
after midnight.
* CWR...................10 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......73-81...64-74 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........26-36 percent.
24 hr trend......17 percent down...27 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
west in the afternoon.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........1000-2500 ft agl increasing to 8500-9500 ft
agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the upper
70s. Southwest winds 10 to 15 mph.
.LABOR DAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. East winds 10 to 15 mph.
.TUESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. Northeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
$$
MTZ117-291045-
Central and Eastern Lewis and Clark National Forest Areas-
151 PM MDT Thu Aug 28 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Showers likely in the
evening. Slight chance of thunderstorms through the night. Chance
of showers after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......49-57.
24 hr trend......4 degrees down.
* Max Humidity..........89-99 percent.
24 hr trend......29 percent up.
* Wind (20 FT).
Lower Elevations...Southwest winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........1000-2500 ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................30 percent.
.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers in the
morning, then showers likely and chance of thunderstorms in the
afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......67-75...57-66 higher elevations.
24 hr trend......6 degrees down...2 degrees up higher
elevations.
* Min Humidity..........60-70 percent.
24 hr trend......10 percent up...20 percent up higher
elevations.
* 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 3500-4500 ft
agl in the afternoon.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................30 percent.
.FRIDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening, then slight chance of
showers after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......47-53.
24 hr trend......6 degrees down...1 degree down higher
elevations.
* Max Humidity..........87-97 percent.
24 hr trend......Unchanged...16 percent down higher elevations.
* Wind (20 FT).
Lower Elevations...Northwest winds 10 to 15 mph shifting to
the southwest after midnight.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........1500-3000 ft agl decreasing to 1000 ft agl
early in the evening.
* Transport Winds.......Northwest 15 to 20 mph shifting to the
southwest after midnight.
* CWR...................10 percent.
.SATURDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......74-84...63-73 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........28-38 percent.
24 hr trend......24 percent down...33 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 8500-10000
ft agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
Southwest winds 10 to 15 mph.
.LABOR DAY...Mostly clear. Lows in the lower 50s. Highs in the
lower 80s. East winds 10 to 15 mph.
.TUESDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s. Northeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s.
$$
weather.gov/greatfalls