247
FNUS55 KTFX 311949
FWFTFX

Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
149 PM MDT Mon Aug 31 2026

.DISCUSSION...

It will warm up through Tuesday then cool to near seasonal
averages through Friday. Tonight there will be moderate to poor
humidity recovery across the southern districts. Tuesday evening
showers and thunderstorms will return to the southern districts.
On Wednesday there will be showers and thunderstorms across the
districts. All thunderstorms will produce gusty, erratic winds and
a brief heavy downpour. On Wednesday and Thursday there will be
gusty winds across the districts. The strongest winds will be
along the Rocky Mountain Front.


MTZ112-011045-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-50.
   24 hr trend......2 degrees up.
* Max Humidity..........66-76 percent.
   24 hr trend......3 percent up...12 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph shifting to
the southeast after midnight.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southwest 15 to 20 mph shifting to the
  southeast after midnight.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......79-84...72-78 higher elevations.
   24 hr trend......7 degrees up.
* Min Humidity..........18-23 percent.
   24 hr trend......5 percent down...15 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southeast winds 10 to 15 mph.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 8500-9000 ft
  agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY NIGHT...
* Sky/Weather...........Mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......50-55.
   24 hr trend......5 degrees up.
* Max Humidity..........64-74 percent.
   24 hr trend......4 percent down.
* Wind (20 FT).
     Lower Elevations...Southeast winds 10 to 15 mph shifting to
the south after midnight.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........7000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southeast 20 to 25 mph shifting to the
  southwest after midnight.
* CWR...................0 percent.

.WEDNESDAY...
* Sky/Weather...........Partly sunny. Chance of showers and slight
  chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......72-81...63-73 higher elevations.
   24 hr trend......3 degrees down...9 degrees down higher
elevations.
* Min Humidity..........31-39 percent...39-49 percent higher
  elevations.
   24 hr trend......11 percent up...23 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 15 to 20 mph.
     Ridges.............Southwest winds 15 to 20 mph.
* Mixing Height.........500-1000 ft agl increasing to 2500 ft agl
  late in the morning, then increasing to 4500-6000 ft agl late in
  the morning increasing to 7000-8500 ft agl early in the afternoon
  increasing to 8000-9000 ft agl decreasing to 6500 ft agl late in
  the afternoon.
* Transport Winds.......Southwest 15 to 20 mph increasing to around
  40 mph in the afternoon.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Windy. Mostly cloudy. Chance of showers. Lows in the
upper 40s. Highs around 70. Southwest winds around 25 mph.
.FRIDAY...Windy. Partly cloudy. Slight chance of showers. Lows in
the mid 40s. Highs in the upper 60s. West winds around 25 mph.
.SATURDAY...Partly cloudy. Chance of showers. Lows in the mid
40s. Highs in the upper 60s. Northwest winds 15 to 20 mph.
.SUNDAY...Mostly cloudy. Chance of showers. Lows in the mid 40s.
Highs in the upper 60s.
.LABOR DAY...Mostly cloudy. Chance of showers. Lows in the upper
40s. Highs in the upper 60s.

$$

MTZ113-011045-
Hill and Blaine Counties-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......46-52.
   24 hr trend......Unchanged...5 degrees up higher elevations.
* Max Humidity..........70-80 percent.
   24 hr trend......14 percent up...1 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...North winds 15 to 20 mph shifting to the
east after midnight.
     Ridges.............West winds around 5 mph shifting to the
southeast after midnight.
* Mixing Height.........6500 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Northwest around 25 mph becoming southeast
  15 to 20 mph after midnight.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......80-85...73-78 higher elevations.
   24 hr trend......10 degrees up.
* Min Humidity..........21-26 percent.
   24 hr trend......14 percent down...9 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 6500 ft agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.

.TUESDAY NIGHT...
* Sky/Weather...........Partly cloudy then becoming mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......53-58...47-56 higher elevations.
   24 hr trend......8 degrees up.
* Max Humidity..........62-72 percent.
   24 hr trend......10 percent down.
* Wind (20 FT).
     Lower Elevations...Southeast winds 15 to 20 mph.
     Ridges.............Southeast winds 15 to 20 mph.
* Mixing Height.........6000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.

.WEDNESDAY...
* Sky/Weather...........Partly sunny. Chance of showers in the
  afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......81-86...73-78 higher elevations.
   24 hr trend......1 degree down.
* Min Humidity..........26-31 percent.
   24 hr trend......7 percent up.
* Wind (20 FT).
     Lower Elevations...South winds 15 to 20 mph.
     Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 3500-5000 ft
  agl late in the morning, then increasing to 7000 ft agl early in
  the afternoon increasing to 9000-10000 ft agl early in the
  afternoon decreasing to 7500 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
Southwest winds 15 to 20 mph.
.FRIDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
West winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows around
50. Highs in the mid 70s. North winds 10 to 15 mph.
.SUNDAY...Mostly cloudy. Chance of showers. Lows around 50. Highs
in the lower 70s.
.LABOR DAY...Mostly cloudy. Chance of showers. Lows around 50.
Highs in the mid 70s.

$$

MTZ114-011045-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......45-52.
   24 hr trend......3 degrees up...8 degrees up higher elevations.
* Max Humidity..........58-68 percent.
   24 hr trend......10 percent down.
* Wind (20 FT).
     Lower Elevations...West winds 5 to 10 mph.
     Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........6500 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......81-86...68-78 higher elevations.
   24 hr trend......8 degrees up.
* Min Humidity..........18-26 percent.
   24 hr trend......7 percent down.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph shifting to
the southeast in the afternoon.
     Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 8500-10000 ft
  agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers.
* Chance Lightning.......0 percent.
* Min Temperature.......51-56...45-53 higher elevations.
   24 hr trend......7 degrees up...1 degree up higher elevations.
* Max Humidity..........67-77 percent.
   24 hr trend......14 percent up...5 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...Southeast winds 10 to 15 mph shifting to
the southwest after midnight.
     Ridges.............South winds 10 to 15 mph shifting to the
southwest after midnight.
* Mixing Height.........7500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.

.WEDNESDAY...
* Sky/Weather...........Partly 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.......72-80...58-68 higher elevations.
   24 hr trend......9 degrees down.
* Min Humidity..........32-42 percent...46-56 percent higher
  elevations.
   24 hr trend......14 percent up...22 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 15 to 20 mph.
     Ridges.............Southwest winds 15 to 20 mph.
* Mixing Height.........500-1000 ft agl increasing to 2500 ft agl
  late in the morning, then increasing to 4500 ft agl late in the
  morning increasing to 6500-7500 ft agl early in the afternoon
  increasing to 8500-10000 ft agl decreasing to 6500 ft agl late in
  the afternoon.
* Transport Winds.......Southwest 15 to 20 mph increasing to south
  around 35 mph in the afternoon.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Windy. Partly cloudy. Chance of showers. Lows in the
mid 40s. Highs in the upper 60s. Southwest winds around 25 mph.
.FRIDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the upper 60s.
Southwest winds 20 to 25 mph.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
Northwest winds 15 to 20 mph.
.SUNDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
.LABOR DAY...Mostly cloudy. Chance of showers. Lows in the mid
40s. Highs in the upper 60s.

$$

MTZ115-011045-
Chouteau and Fergus Counties-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......47-52.
   24 hr trend......2 degrees up.
* Max Humidity..........58-68 percent...48-58 percent higher
  elevations.
   24 hr trend......15 percent up...3 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.........6000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Northeast 15 to 20 mph shifting to the
  southeast after midnight.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......81-86...72-79 higher elevations.
   24 hr trend......9 degrees up.
* Min Humidity..........18-23 percent.
   24 hr trend......5 percent down.
* Wind (20 FT).
     Lower Elevations...Southeast winds 15 to 20 mph.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 7500-8000 ft
  agl.
* Transport Winds.......Southeast 20 to 25 mph.
* CWR...................0 percent.

.TUESDAY NIGHT...
* Sky/Weather...........Mostly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......54-59.
   24 hr trend......6 degrees up.
* Max Humidity..........59-69 percent...49-59 percent higher
  elevations.
   24 hr trend......1 percent down.
* Wind (20 FT).
     Lower Elevations...Southeast winds 15 to 20 mph.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........6000 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 20 to 25 mph shifting to the
  southwest after midnight.
* CWR...................0 percent.

.WEDNESDAY...
* Sky/Weather...........Mostly sunny. Chance of showers in the
  afternoon.
* Chance Lightning.......0 percent.
* Max Temperature.......81-87...74-80 higher elevations.
   24 hr trend......2 degrees down.
* Min Humidity..........23-32 percent.
   24 hr trend......5 percent up.
* 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 3500 ft agl
  late in the morning, then increasing to 6500 ft agl late in the
  morning increasing to 9500-11000 ft agl in the afternoon
  decreasing to 8500 ft agl.
* Transport Winds.......South 15 to 20 mph increasing to around 35
  mph in the afternoon.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs around 80. Southwest winds 20 to 25 mph.
.FRIDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 10 to 15 mph.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s. North winds 15 to 20 mph.
.SUNDAY...Mostly cloudy. Chance of showers. Lows in the lower
50s. Highs in the mid 70s.
.LABOR DAY...Mostly cloudy. Chance of showers. Lows in the lower
50s. Highs in the mid 70s.

$$

MTZ116-118-011045-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-52.
   24 hr trend......5 degrees up.
* Max Humidity..........51-61 percent...41-51 percent higher
  elevations.
   24 hr trend......8 percent down.
* Wind (20 FT).
     Lower Elevations...East winds 10 to 15 mph shifting to the
southeast after midnight.
     Ridges.............Southeast winds 5 to 10 mph.
* Mixing Height.........5500 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......77-84...68-77 higher elevations.
   24 hr trend......4 degrees up.
* Min Humidity..........21-31 percent.
   24 hr trend......5 percent up...4 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...South winds 10 to 15 mph.
     Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 8000-9500 ft
  agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY 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.......47-54.
   24 hr trend......2 degrees up.
* Max Humidity..........77-87 percent...68-78 percent higher
  elevations.
   24 hr trend......38 percent up...27 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...South winds 15 to 20 mph.
     Ridges.............South winds 15 to 20 mph.
* Mixing Height.........7500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................10 percent.

.WEDNESDAY...
* Sky/Weather...........Partly 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.......71-78...61-71 higher elevations.
   24 hr trend......4 degrees down...10 degrees down higher
elevations.
* Min Humidity..........27-37 percent...38-48 percent higher
  elevations.
   24 hr trend......2 percent down...19 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Windy. South winds 10 to 15 mph increasing
to around 25 mph in the afternoon.
     Ridges.............Southwest winds 15 to 20 mph.
* Mixing Height.........500-1500 ft agl increasing to 3000 ft agl
  late in the morning, then increasing to 5000 ft agl late in the
  morning increasing to 7000-8000 ft agl early in the afternoon
  increasing to 9000-10000 ft agl decreasing to 7500 ft agl late in
  the afternoon.
* Transport Winds.......South around 25 mph increasing to southwest
  around 35 mph in the afternoon.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Windy. Partly cloudy. Chance of showers. Lows in the
upper 40s. Highs in the upper 60s. Southwest winds around 25 mph.
.FRIDAY...Windy. Partly cloudy. Chance of showers and slight
chance of thunderstorms. Lows in the mid 40s. Highs around 70.
West winds around 25 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs around 70. North winds
15 to 20 mph.
.SUNDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
.LABOR DAY...Mostly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs in the upper 60s.

$$

MTZ117-011045-
Central and Eastern Lewis and Clark National Forest Areas-
149 PM MDT Mon Aug 31 2026

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-52.
   24 hr trend......3 degrees up.
* Max Humidity..........53-63 percent...42-52 percent higher
  elevations.
   24 hr trend......3 percent up...5 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southeast winds 10 to 15 mph.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........6000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......Southeast 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......77-86...69-79 higher elevations.
   24 hr trend......7 degrees up.
* Min Humidity..........18-25 percent.
   24 hr trend......5 percent down.
* Wind (20 FT).
     Lower Elevations...South winds 15 to 20 mph.
     Ridges.............South winds 10 to 15 mph.
* Mixing Height.........500-1500 ft agl increasing to 9000-9500 ft
  agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.

.TUESDAY NIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
  thunderstorms in the evening.
* Chance Lightning.......20 percent.
* Min Temperature.......48-57.
   24 hr trend......6 degrees up.
* Max Humidity..........63-73 percent.
   24 hr trend......6 percent up...11 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...South winds 15 to 20 mph.
     Ridges.............South winds 15 to 20 mph.
* Mixing Height.........7000 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......South 20 to 25 mph.
* CWR...................0 percent.

.WEDNESDAY...
* Sky/Weather...........Mostly sunny. Chance of showers and slight
  chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......74-82...67-77 higher elevations.
   24 hr trend......3 degrees down.
* Min Humidity..........26-36 percent.
   24 hr trend......11 percent up.
* Wind (20 FT).
     Lower Elevations...South winds 15 to 20 mph.
     Ridges.............Windy. Southwest winds 15 to 20 mph
increasing to around 25 mph in the afternoon.
* Mixing Height.........500-1500 ft agl increasing to 3500 ft agl
  late in the morning, then increasing to 6500 ft agl late in the
  morning increasing to 9000-10000 ft agl early in the afternoon
  increasing to 10500-11000 ft agl decreasing to 9000 ft agl late
  in the afternoon.
* Transport Winds.......Southwest 20 to 25 mph increasing to around
  35 mph in the afternoon.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.THURSDAY...Windy. Partly cloudy. Slight chance of showers. Lows
in the upper 40s. Highs in the lower 70s. Southwest winds around
25 mph.
.FRIDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the lower 70s. Southwest winds 20 to 25 mph.
.SATURDAY...Partly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Northeast winds 15 to 20 mph.
.SUNDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs around 70.
.LABOR DAY...Mostly cloudy. Chance of showers and slight chance
of thunderstorms. Lows in the upper 40s. Highs around 70.

$$

weather.gov/greatfalls