Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Great Falls, MT

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6
910
FNUS55 KTFX 301929
FWFTFX

Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
129 PM MDT Sat Aug 30 2025

.DISCUSSION...

Upper level ridging building in over the Northern Rockies will
bring near to above normal temperatures, light and variable winds,
and predominately dry conditions to all Fire Weather Zones from
Sunday through much of the upcoming work week. Overnight moisture
recovery will be poor to moderate in thermal belt locations
through at least Monday night. - Moldan

MTZ112-311045-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......49-55.
   24 hr trend......4 degrees up.
* Max Humidity..........72-82 percent...60-70 percent higher
  elevations.
   24 hr trend......23 percent down...32 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph.
     Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........8500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-88...75-80 higher elevations.
   24 hr trend......4 degrees up.
* Min Humidity..........19-25 percent.
   24 hr trend......8 percent down.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........500-1000 ft agl increasing to 10000-10500
  ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......49-56.
   24 hr trend......1 degree up.
* Max Humidity..........65-75 percent...49-59 percent higher
  elevations.
   24 hr trend......6 percent down...15 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 5 to 10 mph.
     Ridges.............North winds 5 to 10 mph.
* Mixing Height.........9500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Northeast 10 to 15 mph.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......84-90...77-82 higher elevations.
   24 hr trend......1 degree up.
* Min Humidity..........20-26 percent.
   24 hr trend......Unchanged.
* Wind (20 FT).
     Lower Elevations...Northwest winds around 5 mph shifting to
the east in the afternoon.
     Ridges.............North winds around 5 mph shifting to the
east in the afternoon.
* Mixing Height.........500-2000 ft agl increasing to 9000-10500 ft
  agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s. North winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s. East winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
lower 80s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the lower
80s.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s.

$$

MTZ113-311045-
Hill and Blaine Counties-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Partly cloudy. Patchy fog after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......49-55.
   24 hr trend......5 degrees down.
* Max Humidity..........85-95 percent.
   24 hr trend......Unchanged...18 percent down higher elevations.
* Wind (20 FT).
     Lower Elevations...South winds 5 to 10 mph.
     Ridges.............South winds around 5 mph increasing to 10
to 15 mph after midnight.
* Mixing Height.........5500 ft agl decreasing to BELOW 1000 ft
  agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny. Patchy fog in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......82-87...74-79 higher elevations.
   24 hr trend......10 degrees up.
* Min Humidity..........24-34 percent.
   24 hr trend......12 percent down...17 percent down 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 9000-9500 ft
  agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......50-57.
   24 hr trend......1 degree up.
* Max Humidity..........80-90 percent...63-73 percent higher
  elevations.
   24 hr trend......5 percent down...16 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 5 to 10 mph.
     Ridges.............Northwest winds 5 to 10 mph.
* Mixing Height.........8000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......North 10 to 15 mph.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-88...75-80 higher elevations.
   24 hr trend......2 degrees up.
* Min Humidity..........25-32 percent.
   24 hr trend......1 percent down.
* Wind (20 FT).
     Lower Elevations...North winds 10 to 15 mph.
     Ridges.............North winds 10 to 15 mph.
* Mixing Height.........500-1000 ft agl increasing to 7500-9000 ft
  agl.
* Transport Winds.......North 10 to 15 mph.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s. Northeast winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the mid 40s. Highs in the
lower 70s. East winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the mid 40s. Highs in the
upper 70s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs around 80.
.SATURDAY...Partly cloudy. Lows around 50. Highs in the lower
80s.

$$

MTZ114-311045-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Partly cloudy. Haze after midnight.
* Chance Lightning.......0 percent.
* Min Temperature.......47-53.
   24 hr trend......5 degrees up.
* Max Humidity..........67-77 percent...48-58 percent higher
  elevations.
   24 hr trend......31 percent down...38 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........9000 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny. Haze.
* Chance Lightning.......0 percent.
* Max Temperature.......82-88...69-79 higher elevations.
   24 hr trend......5 degrees up.
* Min Humidity..........18-27 percent.
   24 hr trend......9 percent down.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph shifting to the
northwest in the afternoon.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 10500-11500
  ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY NIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......49-55.
   24 hr trend......3 degrees up.
* Max Humidity..........60-70 percent...42-52 percent higher
  elevations.
   24 hr trend......11 percent up...4 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...North winds around 5 mph shifting to the
west after midnight.
     Ridges.............Northeast winds around 5 mph shifting to
the south after midnight.
* Mixing Height.........10000 ft agl decreasing to 1000-1500 ft
  agl.
* Transport Winds.......Northeast 10 to 15 mph shifting to the west
  after midnight.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......83-89...70-80 higher elevations.
   24 hr trend......1 degree up.
* Min Humidity..........20-29 percent.
   24 hr trend......2 percent up.
* Wind (20 FT).
     Lower Elevations...West winds around 5 mph shifting to the
east in the afternoon.
     Ridges.............Southeast winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 9000-10000
  ft agl.
* Transport Winds.......Southeast 10 to 15 mph.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
North winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the upper
70s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows around 50. Highs in the upper
70s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s.

$$

MTZ115-311045-
Chouteau and Fergus Counties-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......50-56.
   24 hr trend......3 degrees down.
* Max Humidity..........77-87 percent.
   24 hr trend......17 percent down...22 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...East winds around 5 mph shifting to the
south after midnight.
     Ridges.............Southeast winds 10 to 15 mph shifting to
the southwest after midnight.
* Mixing Height.........7000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......South 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-89...74-80 higher elevations.
   24 hr trend......9 degrees up.
* Min Humidity..........20-27 percent.
   24 hr trend......17 percent down.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph shifting to
the northwest in the afternoon.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........500-2000 ft agl increasing to 8500-9500 ft
  agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......51-58.
   24 hr trend......1 degree up.
* Max Humidity..........70-80 percent...53-63 percent higher
  elevations.
   24 hr trend......8 percent down...23 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds around 5 mph shifting to
the southwest after midnight.
     Ridges.............Northeast winds around 5 mph shifting to
the southwest after midnight.
* Mixing Height.........9000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......North 15 to 20 mph shifting to the
  southwest after midnight.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-90...74-80 higher elevations.
   24 hr trend......Unchanged.
* Min Humidity..........23-29 percent.
   24 hr trend......3 percent up.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph shifting to the
north in the afternoon.
     Ridges.............Southwest winds 10 to 15 mph shifting to
the north in the afternoon.
* Mixing Height.........500-1000 ft agl increasing to 8000-8500 ft
  agl.
* Transport Winds.......Northwest 10 to 15 mph shifting to the
  north in the afternoon.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the
lower 80s. North winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
East winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs around
80. West winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the lower 80s.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
mid 80s.

$$

MTZ116-118-311045-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......46-54.
   24 hr trend......Unchanged.
* Max Humidity..........61-71 percent...42-52 percent higher
  elevations.
   24 hr trend......25 percent down...53 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph shifting to
the south after midnight.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........9000 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......Northwest 15 to 20 mph shifting to the
  southwest after midnight.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny. Haze through the day.
* Chance Lightning.......0 percent.
* Max Temperature.......78-85...70-79 higher elevations.
   24 hr trend......4 degrees up.
* Min Humidity..........18-23 percent.
   24 hr trend......9 percent down.
* Wind (20 FT).
     Lower Elevations...South winds 10 to 15 mph shifting to the
north in the afternoon.
     Ridges.............Southwest winds 10 to 15 mph shifting to
the northwest in the afternoon.
* Mixing Height.........1000-2500 ft agl increasing to 9000-10000
  ft agl.
* Transport Winds.......Southwest 15 to 20 mph shifting to the
  northwest in the afternoon.
* CWR...................0 percent.

.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......48-56.
   24 hr trend......3 degrees up.
* Max Humidity..........50-60 percent...34-44 percent higher
  elevations.
   24 hr trend......18 percent down...6 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds around 5 mph shifting to
the southeast after midnight.
     Ridges.............East winds 10 to 15 mph.
* Mixing Height.........8000 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......Northeast 10 to 15 mph.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......81-88...71-81 higher elevations.
   24 hr trend......3 degrees up.
* Min Humidity..........19-25 percent.
   24 hr trend......1 percent up.
* Wind (20 FT).
     Lower Elevations...Southeast winds around 5 mph shifting to
the northeast in the afternoon.
     Ridges.............East winds 5 to 10 mph.
* Mixing Height.........1000-2500 ft agl increasing to 10500-11000
  ft agl.
* Transport Winds.......East 10 to 15 mph.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s. Northeast winds 10 to 15 mph.
.WEDNESDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. North winds 10 to 15 mph.
.THURSDAY...Mostly clear. Lows in the lower 50s. Highs in the
upper 70s. North winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows around 50. Highs in the upper 70s.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the upper 70s.

$$

MTZ117-311045-
Central and Eastern Lewis and Clark National Forest Areas-
129 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather...........Partly cloudy.
* Chance Lightning.......0 percent.
* Min Temperature.......45-55.
   24 hr trend......1 degree up.
* Max Humidity..........69-79 percent...56-66 percent higher
  elevations.
   24 hr trend......20 percent down...49 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph shifting to the
southwest after midnight.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........8000 ft agl decreasing to 1000 ft agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.SUNDAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......79-89...70-79 higher elevations.
   24 hr trend......5 degrees up.
* Min Humidity..........17-26 percent.
   24 hr trend......12 percent down.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph shifting to
the northwest in the afternoon.
     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.

.SUNDAY NIGHT...
* Sky/Weather...........Mostly clear.
* Chance Lightning.......0 percent.
* Min Temperature.......48-56.
   24 hr trend......1 degree up.
* Max Humidity..........57-67 percent...44-54 percent higher
  elevations.
   24 hr trend......3 percent down...8 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph shifting to
the south after midnight.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the south after midnight.
* Mixing Height.........9000 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......Northeast 10 to 15 mph shifting to the
  south after midnight.
* CWR...................0 percent.

.LABOR DAY...
* Sky/Weather...........Sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......81-90...71-80 higher elevations.
   24 hr trend......3 degrees up.
* Min Humidity..........20-28 percent.
   24 hr trend......1 percent up.
* Wind (20 FT).
     Lower Elevations...Southwest winds around 5 mph shifting to
the northeast in the afternoon.
     Ridges.............Southwest winds 10 to 15 mph shifting to
the northeast in the afternoon.
* Mixing Height.........500-1500 ft agl increasing to 9500-10500 ft
  agl.
* Transport Winds.......Southeast 10 to 15 mph shifting to the
  northeast in the afternoon.
* CWR...................0 percent.


.FORECAST DAYS 3 THROUGH 7......
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs around 80.
North winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. Northeast winds 10 to 15 mph.
.THURSDAY...Partly cloudy. Lows in the upper 40s. Highs in the
mid 70s. Northwest winds 10 to 15 mph.
.FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the upper
70s.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s.

$$

weather.gov/greatfalls