Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
787
FNUS55 KTFX 191917
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
117 PM MDT Sat Sep 19 2026
.DISCUSSION...
Rain will gradually end from west to east through the overnight
hours tonight along and south of the Montana Hwy 200 corridor,
with dry conditions settling in across the Northern Rockies then
through the middle of the upcoming work week. Temperatures will
moderate to near normal on Sunday before climbing above normal for
the first half of the work week. - Moldan
MTZ112-201030-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......42-47.
24 hr trend......5 degrees down...2 degrees up higher
elevations.
* Max Humidity..........86-94 percent.
24 hr trend......7 percent down.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........5000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-75...63-70 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........30-39 percent.
24 hr trend......9 percent down...19 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........500-1000 ft agl increasing to 4500-5500 ft
agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......43-48.
24 hr trend......2 degrees up.
* Max Humidity..........82-92 percent...71-81 percent higher
elevations.
24 hr trend......11 percent up...11 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 15 to 20 mph.
Ridges.............South winds 15 to 20 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Partly sunny then becoming sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......73-79...65-71 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........28-38 percent.
24 hr trend......4 percent down.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 3000-4000 ft
agl early in the afternoon, then increasing to 4500-5500 ft agl
early in the afternoon decreasing to 3500 ft agl late in the
afternoon.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Southwest winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southwest winds 15 to 20 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. West winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 60s.
.SATURDAY...Mostly cloudy. Slight chance of rain. Lows in the mid
40s. Highs in the upper 50s.
$$
MTZ113-201030-
Hill and Blaine Counties-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-50.
24 hr trend......3 degrees down.
* Max Humidity..........92-100 percent.
24 hr trend......14 percent up...9 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...East winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........5000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......66-73...60-65 higher elevations.
24 hr trend......2 degrees up.
* Min Humidity..........41-51 percent...52-58 percent higher
elevations.
24 hr trend......1 percent down...7 percent up higher
elevations.
* 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 4500 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......46-51.
24 hr trend......1 degree up.
* Max Humidity..........95-100 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........4000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Partly sunny then becoming sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-78...64-69 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........39-49 percent.
24 hr trend......1 percent down...8 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 15 to 20 mph.
Ridges.............Southeast winds 15 to 20 mph.
* Mixing Height.........500-1500 ft agl increasing to 4000-4500 ft
agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s. South winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. South winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Southwest winds around 5 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid
70s.
.SATURDAY...Cooler. Mostly cloudy. Slight chance of rain. Lows in
the upper 40s. Highs in the mid 60s.
$$
MTZ114-201030-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......40-46.
24 hr trend......4 degrees down.
* Max Humidity..........85-95 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph shifting to
the southwest after midnight.
Ridges.............Southeast winds 10 to 15 mph shifting to
the southwest after midnight.
* Mixing Height.........4500 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 15 to 20 mph shifting to the
southwest after midnight.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-75...58-67 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........30-40 percent.
24 hr trend......15 percent down...24 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 5000 ft agl.
* Transport Winds.......South 10 to 15 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......42-48.
24 hr trend......Unchanged.
* Max Humidity..........72-82 percent.
24 hr trend......15 percent down...22 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph increasing to
15 to 20 mph after midnight.
* Mixing Height.........4000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......74-79...61-71 higher elevations.
24 hr trend......5 degrees up.
* Min Humidity..........24-29 percent...29-39 percent higher
elevations.
24 hr trend......5 percent down.
* 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 4500-6000 ft
agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Southwest winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds 15 to 20 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. Southwest winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Slight chance of rain. Lows in the upper
40s. Highs in the upper 60s.
.SATURDAY...Cooler. Mostly cloudy. Slight chance of rain. Lows in
the mid 40s. Highs in the upper 50s.
$$
MTZ115-201030-
Chouteau and Fergus Counties-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of rain.
* Chance Lightning.......0 percent.
* Min Temperature.......46-51.
24 hr trend......4 degrees down.
* Max Humidity..........90-99 percent.
24 hr trend......6 percent up...11 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............East winds 10 to 15 mph.
* Mixing Height.........4000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Chance of rain in the
morning.
* Chance Lightning.......0 percent.
* Max Temperature.......63-73...54-62 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........42-52 percent...58-68 percent higher
elevations.
24 hr trend......1 percent up...10 percent down higher
elevations.
* 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 3500-5000 ft
agl in the afternoon.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-50.
24 hr trend......1 degree down.
* Max Humidity..........90-100 percent.
24 hr trend......8 percent up...unchanged higher elevations.
* Wind (20 FT).
Lower Elevations...Southeast winds 10 to 15 mph.
Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........4000 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Partly sunny then becoming sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......72-79...64-70 higher elevations.
24 hr trend......5 degrees up...10 degrees up higher elevations.
* Min Humidity..........32-42 percent.
24 hr trend......5 percent down...22 percent down higher
elevations.
* 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 4000-5500 ft
agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s. South winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. South winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Southwest winds 10 to 15 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.SATURDAY...Cooler. Mostly cloudy. Slight chance of rain. Lows
around 50. Highs in the mid 60s.
$$
MTZ116-118-201030-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of rain in the
evening. Patchy fog after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......40-46.
24 hr trend......6 degrees down.
* Max Humidity..........92-100 percent.
24 hr trend......Unchanged.
* Wind (20 FT).
Lower Elevations...Northeast winds around 5 mph shifting to
the west after midnight.
Ridges.............East winds around 5 mph.
* Mixing Height.........1500-3000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......East 10 to 15 mph shifting to the southeast
after midnight.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......63-71...56-66 higher elevations.
24 hr trend......9 degrees up.
* Min Humidity..........34-43 percent.
24 hr trend......44 percent down.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph.
Ridges.............South winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 4500-5000 ft
agl.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......41-47.
24 hr trend......1 degree down.
* Max Humidity..........74-84 percent.
24 hr trend......22 percent down.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............South winds 5 to 10 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......South 10 to 15 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......69-76...60-69 higher elevations.
24 hr trend......7 degrees up.
* Min Humidity..........32-42 percent.
24 hr trend......3 percent down.
* 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 4500-5500 ft
agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 40s. Highs in the lower
70s. South winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. South winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s. South winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 70s.
.SATURDAY...Mostly cloudy. Slight chance of rain. Lows in the mid
40s. Highs in the lower 60s.
$$
MTZ117-201030-
Central and Eastern Lewis and Clark National Forest Areas-
117 PM MDT Sat Sep 19 2026
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of rain.
* Chance Lightning.......0 percent.
* Min Temperature.......40-47.
24 hr trend......7 degrees down.
* Max Humidity..........90-100 percent.
24 hr trend......7 percent down...unchanged higher elevations.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............Northeast winds 10 to 15 mph decreasing to
around 5 mph after midnight.
* Mixing Height.........3500 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......64-74...55-64 higher elevations.
24 hr trend......8 degrees up.
* Min Humidity..........34-44 percent...46-56 percent higher
elevations.
24 hr trend......36 percent down.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph shifting to the
southeast in the afternoon.
Ridges.............Northeast winds around 5 mph.
* Mixing Height.........500-1500 ft agl increasing to 4500-5000 ft
agl.
* Transport Winds.......South 15 to 20 mph shifting to the
southeast in the afternoon.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......40-48.
24 hr trend......Unchanged.
* Max Humidity..........79-89 percent.
24 hr trend......7 percent down...16 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........3500 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Partly sunny then becoming sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......70-80...61-70 higher elevations.
24 hr trend......4 degrees down.
* Min Humidity..........27-37 percent.
24 hr trend......5 percent down.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 3000-4500 ft
agl late in the morning, then increasing to 5000-6000 ft agl in
the afternoon decreasing to 4000 ft agl late in the afternoon.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s. Southwest winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southwest winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
Southwest winds 10 to 15 mph.
.FRIDAY...Partly cloudy. Lows around 50. Highs in the lower 70s.
.SATURDAY...Cooler. Mostly cloudy. Chance of rain. Lows in the
upper 40s. Highs in the lower 60s.
$$
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