Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
975
FNUS55 KTFX 020919
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
319 AM MDT Sat Aug 2 2025
.DISCUSSION...
A low along the Canadian border will maintain scattered showers
and thunderstorms again today, most numerous along the Rocky
Mountain Front and the Hi-Line. Although instability will be less
than the last couple of days, the stronger cells may still produce
brief heavy downpours, gusty winds, and small hail in addition to
lightning. More daily rounds of showers and thunderstorms are
expected heading into next week, but the strongest and most
widespread activity is expected Monday into Tuesday. Temperatures
generally remain near average for next several days.
MTZ112-022215-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the morning, then showers likely and
chance of thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......71-80...63-70 higher elevations.
24 hr trend......6 degrees down.
* Min Humidity..........51-61 percent...60-70 percent higher
elevations.
24 hr trend......10 percent up.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 2500-3500 ft
agl late in the morning, then increasing to 4500-6000 ft agl in
the afternoon decreasing to 4000 ft agl late in the afternoon.
* Transport Winds.......West 15 to 20 mph.
* CWR...................30 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......54-59.
24 hr trend......2 degrees down.
* Max Humidity..........79-89 percent.
24 hr trend......10 percent down...3 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 15 to 20 mph.
* Mixing Height.........1500-3000 ft agl decreasing to 500-1000 ft
agl in the late evening and overnight.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......10 percent.
* Max Temperature.......72-80...66-71 higher elevations.
24 hr trend......1 degree up.
* Min Humidity..........34-44 percent.
24 hr trend......24 percent down.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 6000-7000 ft
agl.
* Transport Winds.......Northwest 20 to 25 mph.
* CWR...................10 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Southwest winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the mid 50s. Highs in the mid 70s. West winds 15 to
20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 15 to 20 mph.
.THURSDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid
70s.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the upper 60s.
$$
MTZ113-022215-
Hill and Blaine Counties-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Partly sunny. Patchy fog in the morning.
Chance of showers and slight chance of thunderstorms in the
morning, then showers likely and chance of thunderstorms in the
afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......78-83...70-75 higher elevations.
24 hr trend......5 degrees down.
* Min Humidity..........50-60 percent.
24 hr trend......12 percent up...5 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...West winds 5 to 10 mph.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 4500-5500 ft
agl.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................20 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
thunderstorms in the evening, then slight chance of showers and
thunderstorms after midnight.
* Chance Lightning.......50 percent.
* Min Temperature.......55-60.
24 hr trend......Unchanged.
* Max Humidity..........87-97 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........2500-3500 ft agl decreasing to 500-1500 ft
agl early in the evening.
* Transport Winds.......West 15 to 20 mph.
* CWR...................20 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the morning, then chance of showers and slight chance of
thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......76-81...69-74 higher elevations.
24 hr trend......1 degree down.
* Min Humidity..........41-51 percent.
24 hr trend......14 percent down.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 4500-5500 ft
agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. East
winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the upper 50s. Highs in the upper 70s.
South winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s. West
winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 50s. Highs in the lower 80s.
.FRIDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 70s.
$$
MTZ114-022215-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of
thunderstorms in the morning. Chance of showers through the day.
Chance of thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......72-79...58-68 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........44-54 percent...58-68 percent higher
elevations.
24 hr trend......8 percent up.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 15 to 20 mph.
* Mixing Height.........1000-2500 ft agl increasing to 4500-6000 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................20 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......53-58...47-54 higher elevations.
24 hr trend......Unchanged.
* Max Humidity..........70-80 percent.
24 hr trend......21 percent down...11 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........3000-4000 ft agl decreasing to 1000-2000 ft
agl early in the evening.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-82...64-74 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........22-32 percent.
24 hr trend......24 percent down...35 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 8500-9500 ft
agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. West winds 10 to
15 mph.
.TUESDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
West winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 15 to 20 mph.
.THURSDAY...Mostly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the lower 70s.
.FRIDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the upper 60s.
$$
MTZ115-022215-
Chouteau and Fergus Counties-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......78-83...69-75 higher elevations.
24 hr trend......3 degrees down.
* Min Humidity..........44-53 percent.
24 hr trend......4 percent up.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 5000-6500 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................10 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of thunderstorms in the
evening.
* Chance Lightning.......20 percent.
* Min Temperature.......54-60.
24 hr trend......1 degree up.
* Max Humidity..........76-86 percent.
24 hr trend......11 percent down...25 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........2000-3500 ft agl decreasing to 500-1500 ft
agl early in the evening.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......78-83...69-76 higher elevations.
24 hr trend......1 degree down.
* Min Humidity..........27-35 percent.
24 hr trend......17 percent down.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-8000 ft
agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the mid 80s.
Southeast winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the upper 50s. Highs in the upper 70s.
West winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the mid 50s. Highs in the mid
80s. West winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 50s. Highs in the lower 80s.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 50s. Highs in the mid 70s.
$$
MTZ116-118-022215-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the morning. Slight chance of thunderstorms through the day.
Chance of showers in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......72-81...62-72 higher elevations.
24 hr trend......2 degrees down...7 degrees down higher
elevations.
* Min Humidity..........35-45 percent...44-54 percent higher
elevations.
24 hr trend......5 percent up.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 4000-5500 ft
agl late in the morning, then increasing to 7000-8000 ft agl
early in the afternoon increasing to 8500-9000 ft agl late in the
afternoon decreasing to 6500 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.
.TONIGHT...
* Sky/Weather...........Partly cloudy. Slight chance of showers and
thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......48-55.
24 hr trend......2 degrees down.
* Max Humidity..........70-80 percent.
24 hr trend......2 percent down...9 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph shifting to the
southwest after midnight.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........4000-5500 ft agl decreasing to 1000-2500 ft
agl early in the evening.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-84...66-76 higher elevations.
24 hr trend......2 degrees up...7 degrees up higher elevations.
* Min Humidity..........18-26 percent.
24 hr trend......14 percent down...23 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 10500 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the upper 70s. South winds 10 to
15 mph.
.TUESDAY...Partly cloudy. Chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. West winds 10 to
15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs around
80. West winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the
upper 70s.
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the mid 50s. Highs in the upper 60s.
$$
MTZ117-022215-
Central and Eastern Lewis and Clark National Forest Areas-
319 AM MDT Sat Aug 2 2025
.TODAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......73-81...64-73 higher elevations.
24 hr trend......4 degrees down.
* Min Humidity..........42-52 percent.
24 hr trend......6 percent up.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 15 to 20 mph.
* Mixing Height.........1000-2500 ft agl increasing to 3500-5000 ft
agl late in the morning, then increasing to 6000-7500 ft agl in
the afternoon decreasing to 5500 ft agl late in the afternoon.
* Transport Winds.......West 15 to 20 mph.
* CWR...................10 percent.
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......48-57.
24 hr trend......4 degrees down.
* Max Humidity..........72-82 percent.
24 hr trend......19 percent down...7 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........3500-4500 ft agl decreasing to 1000-2000 ft
agl early in the evening.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-84...66-75 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........22-32 percent.
24 hr trend......22 percent down.
* 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 8000-9000 ft
agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.MONDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
South winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. West
winds 15 to 20 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs around
80. West winds 15 to 20 mph.
.THURSDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 50s. Highs in the upper 70s.
.FRIDAY...Cooler. Mostly cloudy with chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
$$
weather.gov/greatfalls