Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
843
FNUS55 KTFX 162043
FWFTFX
Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
243 PM MDT Sat Aug 16 2025
.DISCUSSION...
Scattered showers and thunderstorms are expected daily through
Monday. Main impact will be lightning, brief heavy rainfall and
strong erratic wind gusts. Overall, above normal afternoon
temperatures are expected through Wednesday, before turning a bit
cooler starting Thursday. Brusda
MTZ112-171030-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......50-58.
24 hr trend......4 degrees up...7 degrees down higher
elevations.
* Max Humidity..........73-83 percent.
24 hr trend......2 percent up...17 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...West winds 15 to 20 mph.
Ridges.............West winds 15 to 20 mph.
* Mixing Height.........3500-4500 ft agl decreasing to 500-2000 ft
agl early in the evening.
* Transport Winds.......West around 30 mph decreasing to 20 to 25
mph after midnight.
* CWR...................0 percent.
.SUNDAY...
* Sky/Weather...........Partly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-83...67-74 higher elevations.
24 hr trend......10 degrees down.
* Min Humidity..........26-33 percent.
24 hr trend......10 percent up...12 percent down higher
elevations.
* 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 7500 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......50-56.
24 hr trend......3 degrees down.
* Max Humidity..........66-76 percent...57-67 percent higher
elevations.
24 hr trend......4 percent down...20 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........5500-7000 ft agl decreasing to 500-1000 ft
agl early in the evening.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......10 percent.
* Max Temperature.......79-87...71-78 higher elevations.
24 hr trend......3 degrees up.
* Min Humidity..........24-29 percent.
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 8500-9500 ft
agl.
* Transport Winds.......Southwest 15 to 20 mph increasing to around
30 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. West winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. West winds 15 to 20 mph.
.THURSDAY...Not as warm. Mostly clear. Lows in the lower 50s.
Highs in the mid 70s. Northwest winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
70s.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
$$
MTZ113-171030-
Hill and Blaine Counties-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
Slight chance of thunderstorms in the evening. Slight chance of
showers through the night.
* Chance Lightning.......20 percent.
* Min Temperature.......57-62.
24 hr trend......2 degrees up...5 degrees down higher
elevations.
* Max Humidity..........76-86 percent.
24 hr trend......25 percent down...5 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........7500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......80-85...73-78 higher elevations.
24 hr trend......6 degrees down.
* Min Humidity..........30-40 percent.
24 hr trend......6 percent down...11 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 6500-7500 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
thunderstorms in the evening. Haze after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......56-61.
24 hr trend......1 degree down.
* Max Humidity..........77-87 percent.
24 hr trend......8 percent up...1 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...South winds around 5 mph.
Ridges.............South winds around 5 mph.
* Mixing Height.........5500-7000 ft agl decreasing to 500-1500 ft
agl early in the evening.
* Transport Winds.......Southwest 20 to 25 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......84-89...77-82 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........29-39 percent.
24 hr trend......4 percent down.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............South winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-8500 ft
agl.
* Transport Winds.......South 10 to 15 mph increasing to southwest
around 25 mph in the afternoon.
* CWR...................10 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows around 60. Highs in the lower 90s. Southeast
winds around 5 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
upper 80s. Northeast winds 10 to 15 mph.
.THURSDAY...Not as warm. Mostly clear. Slight chance of showers.
Lows in the upper 50s. Highs in the upper 70s. Northwest winds
10 to 15 mph.
.FRIDAY...Mostly clear. Slight chance of showers. Lows in the
lower 50s. Highs in the lower 70s.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
$$
MTZ114-171030-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
thunderstorms in the evening.
* Chance Lightning.......10 percent.
* Min Temperature.......53-58...47-54 higher elevations.
24 hr trend......Unchanged.
* Max Humidity..........73-83 percent.
24 hr trend......15 percent up...4 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......West around 30 mph becoming southwest 20 to
25 mph after midnight.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Partly sunny. Slight chance of showers in
the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......76-83...62-72 higher elevations.
24 hr trend......10 degrees down.
* Min Humidity..........32-37 percent...38-48 percent higher
elevations.
24 hr trend......16 percent up...3 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-1500 ft agl increasing to 7000-7500 ft
agl.
* Transport Winds.......Southwest 20 to 25 mph.
* CWR...................10 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Slight chance of showers and thunderstorms in the evening. Haze
after midnight.
* Chance Lightning.......10 percent.
* Min Temperature.......48-56.
24 hr trend......1 degree down.
* Max Humidity..........71-81 percent.
24 hr trend......1 percent up...11 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........6500 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......80-87...67-77 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........24-30 percent...30-40 percent higher
elevations.
24 hr trend......7 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.......Southwest 20 to 25 mph increasing to around
30 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
80s. West winds 15 to 20 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs in the
mid 80s. West winds 15 to 20 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the mid
70s. West winds 15 to 20 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
70s.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
$$
MTZ115-171030-
Chouteau and Fergus Counties-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
Chance of showers and slight chance of thunderstorms in the
evening.
* Chance Lightning.......20 percent.
* Min Temperature.......56-62.
24 hr trend......2 degrees up.
* Max Humidity..........71-81 percent.
24 hr trend......1 percent up...8 percent down higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 10 to 15 mph.
Ridges.............West winds 10 to 15 mph.
* Mixing Height.........8000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................20 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......81-86...73-80 higher elevations.
24 hr trend......10 degrees down.
* Min Humidity..........32-39 percent.
24 hr trend......8 percent up...16 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Northwest winds 5 to 10 mph.
Ridges.............Northwest winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 6500-7500 ft
agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................10 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Haze through the night.
* Chance Lightning.......20 percent.
* Min Temperature.......55-61.
24 hr trend......1 degree down.
* Max Humidity..........74-84 percent.
24 hr trend......8 percent up...2 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...South winds 5 to 10 mph.
Ridges.............South winds 5 to 10 mph.
* Mixing Height.........6000 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................10 percent.
.MONDAY...
* Sky/Weather...........Sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......85-90...76-83 higher elevations.
24 hr trend......6 degrees up.
* Min Humidity..........26-33 percent.
24 hr trend......4 percent down.
* Wind (20 FT).
Lower Elevations...Southwest winds around 5 mph.
Ridges.............Southwest winds around 5 mph.
* Mixing Height.........500-2000 ft agl increasing to 8500-9500 ft
agl.
* Transport Winds.......South 10 to 15 mph increasing to southwest
20 to 25 mph in the afternoon.
* CWR...................10 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the lower 60s. Highs in the lower 90s.
Southeast winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 60s. Highs in the
lower 90s. Northwest winds 10 to 15 mph.
.THURSDAY...Not as warm. Mostly clear. Slight chance of showers.
Lows around 60. Highs in the lower 80s. Northwest winds 10 to
15 mph.
.FRIDAY...Mostly clear. Slight chance of showers. Lows in the mid
50s. Highs in the mid 70s.
.SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s.
$$
MTZ116-118-171030-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
thunderstorms in the evening. Haze through the night.
* Chance Lightning.......30 percent.
* Min Temperature.......50-57.
24 hr trend......4 degrees down.
* Max Humidity..........71-81 percent.
24 hr trend......28 percent up...23 percent up higher
elevations.
* Wind (20 FT).
Lower Elevations...West winds 5 to 10 mph.
Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........7000 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......West 20 to 25 mph decreasing to 10 to 15
mph after midnight.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Partly sunny. Haze through the day. Chance
of showers and slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......76-85...67-77 higher elevations.
24 hr trend......6 degrees down...11 degrees down higher
elevations.
* Min Humidity..........34-44 percent.
24 hr trend......18 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 4000-5000 ft
agl late in the morning, then increasing to 6000-7500 ft agl
early in the afternoon increasing to 7500-8000 ft agl late in the
afternoon decreasing to 5500 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................20 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy then becoming partly cloudy.
Chance of showers and slight chance of thunderstorms in the
evening. Haze through the night.
* Chance Lightning.......20 percent.
* Min Temperature.......50-56.
24 hr trend......1 degree down.
* Max Humidity..........76-86 percent.
24 hr trend......1 percent up...8 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............South winds 10 to 15 mph.
* Mixing Height.........4500 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................10 percent.
.MONDAY...
* Sky/Weather...........Mostly sunny. Slight chance of showers in
the afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......80-89...70-80 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........22-32 percent.
24 hr trend......13 percent down.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 11500-13000
ft agl.
* Transport Winds.......South 20 to 25 mph increasing to southwest
around 30 mph in the afternoon.
* CWR...................0 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
80s. Southwest winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
mid 80s. West winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
Northwest winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the mid 70s.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the
upper 70s.
$$
MTZ117-171030-
Central and Eastern Lewis and Clark National Forest Areas-
243 PM MDT Sat Aug 16 2025
.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
thunderstorms in the evening. Haze through the night.
* Chance Lightning.......40 percent.
* Min Temperature.......50-59.
24 hr trend......1 degree down.
* Max Humidity..........69-79 percent.
24 hr trend......9 percent up...22 percent up higher elevations.
* Wind (20 FT).
Lower Elevations...Southwest winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........8000 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................10 percent.
.SUNDAY...
* Sky/Weather...........Mostly sunny. Haze through the day. Chance
of showers and slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......78-86...69-78 higher elevations.
24 hr trend......10 degrees down.
* Min Humidity..........32-42 percent.
24 hr trend......16 percent up.
* 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 3000-4000 ft
agl late in the morning, then increasing to 5500-7000 ft agl
early in the afternoon increasing to 7500-9000 ft agl early in
the afternoon decreasing to 6500 ft agl.
* Transport Winds.......West 10 to 15 mph increasing to 20 to 25
mph in the afternoon.
* CWR...................10 percent.
.SUNDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
chance of thunderstorms in the evening. Haze through the night.
* Chance Lightning.......20 percent.
* Min Temperature.......49-57.
24 hr trend......1 degree down.
* Max Humidity..........73-83 percent.
24 hr trend......1 percent down.
* Wind (20 FT).
Lower Elevations...South winds 10 to 15 mph.
Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........4500 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................10 percent.
.MONDAY...
* Sky/Weather...........Sunny. Slight chance of showers and
thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......81-90...71-81 higher elevations.
24 hr trend......4 degrees up.
* Min Humidity..........23-33 percent.
24 hr trend......9 percent down...15 percent down higher
elevations.
* 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 10000-11500
ft agl.
* Transport Winds.......Southwest 20 to 25 mph.
* CWR...................10 percent.
.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Slight chance of showers and
thunderstorms. Lows in the upper 50s. Highs in the upper 80s.
Southwest winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs in the
upper 80s. Southwest winds 15 to 20 mph.
.THURSDAY...Not as warm. Mostly clear. Slight chance of showers.
Lows in the mid 50s. Highs in the upper 70s. Northwest winds
10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the lower 70s.
.SATURDAY...Mostly clear. Lows in the upper 40s. Highs in the mid
70s.
$$
weather.gov/greatfalls