449
FNUS55 KTFX 110809
FWFTFX

Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
209 AM MDT Thu Sep 11 2025

.DISCUSSION...

Today and tomorrow there will be showers and thunderstorms across
the districts with isolated strong thunderstorms in Fergus and
Blaine Counties. On Saturday there will be very isolated showers
and thunderstorms across the districts. Any thunderstorm will
produce frequent lightning, heavy downpours, small hail, and
gusty, erratic winds. Most of the course of the next week
temperatures will be near or slightly above seasonal averages.
Early next week there will be shower chances across the districts. -IG


MTZ112-112245-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
209 AM MDT Thu Sep 11 2025

.TODAY...
* 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.......72-78...65-70 higher elevations.
   24 hr trend......2 degrees down.
* Min Humidity..........37-42 percent.
   24 hr trend......7 percent up...1 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...North winds 10 to 15 mph.
     Ridges.............North winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 6000-6500 ft
  agl.
* Transport Winds.......North 15 to 20 mph shifting to the
  northeast in the afternoon.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of
  thunderstorms in the evening. Slight chance of showers through
  the night.
* Chance Lightning.......20 percent.
* Min Temperature.......47-53.
   24 hr trend......Unchanged.
* Max Humidity..........81-91 percent.
   24 hr trend......Unchanged.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph shifting to
the west after midnight.
     Ridges.............Northeast winds 10 to 15 mph shifting to
the northwest after midnight.
* Mixing Height.........5000 ft agl decreasing to 500-2000 ft agl.
* Transport Winds.......Southeast 15 to 20 mph shifting to the
  northwest after midnight.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......71-76...64-70 higher elevations.
   24 hr trend......1 degree down.
* Min Humidity..........40-48 percent.
   24 hr trend......4 percent up.
* Wind (20 FT).
     Lower Elevations...West winds around 5 mph.
     Ridges.............West winds around 5 mph.
* Mixing Height.........500-2000 ft agl increasing to 6000-7000 ft
  agl.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers. Lows around 50.
Highs in the mid 70s. West winds 10 to 15 mph.
.SUNDAY...Partly cloudy. Lows around 50. Highs in the mid 70s.
West winds 10 to 15 mph.
.MONDAY...Partly cloudy. Slight chance of showers. Lows around
50. Highs in the lower 70s. West winds 15 to 20 mph.
.TUESDAY...Mostly cloudy. Chance of showers. Lows in the upper
40s. Highs in the upper 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 40s. Highs in the lower 70s.

$$

MTZ113-112245-
Hill and Blaine Counties-
209 AM MDT Thu Sep 11 2025

.TODAY...
* 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.......76-81...68-73 higher elevations.
   24 hr trend......4 degrees down.
* Min Humidity..........38-45 percent.
   24 hr trend......14 percent up.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............North winds 5 to 10 mph.
* Mixing Height.........500-2000 ft agl increasing to 4000-5000 ft
  agl.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms.
* Chance Lightning.......20 percent.
* Min Temperature.......51-56...45-53 higher elevations.
   24 hr trend......2 degrees up...4 degrees down higher
elevations.
* Max Humidity..........87-97 percent.
   24 hr trend......9 percent up...25 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph.
     Ridges.............Northwest winds 5 to 10 mph.
* Mixing Height.........3000 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......Northwest 20 to 25 mph decreasing to 10 to
  15 mph after midnight.
* CWR...................20 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Haze through the day. Chance
  of showers through the day. Slight chance of thunderstorms in the
  afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......71-76...64-69 higher elevations.
   24 hr trend......6 degrees down.
* Min Humidity..........46-56 percent.
   24 hr trend......4 percent up.
* 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 4000-5000 ft
  agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
Southwest winds around 5 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s. Southwest winds around 5 mph.
.MONDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the mid 70s. West winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers. Lows around 50.
Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the lower 70s.

$$

MTZ114-112245-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
209 AM MDT Thu Sep 11 2025

.TODAY...
* Sky/Weather...........Mostly sunny then becoming mostly cloudy.
  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.......71-77...59-68 higher elevations.
   24 hr trend......6 degrees down.
* Min Humidity..........39-44 percent...45-55 percent higher
  elevations.
   24 hr trend......15 percent up...24 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds 10 to 15 mph.
     Ridges.............East winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 5000-5500 ft
  agl.
* Transport Winds.......Northeast 15 to 20 mph.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of thunderstorms in
  the evening. Chance of showers through the night. Slight chance
  of thunderstorms after midnight.
* Chance Lightning.......50 percent.
* Min Temperature.......45-52.
   24 hr trend......2 degrees down.
* Max Humidity..........83-93 percent.
   24 hr trend......2 percent up...8 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...West winds around 5 mph.
     Ridges.............East winds 10 to 15 mph shifting to the
northwest after midnight.
* Mixing Height.........4500 ft agl decreasing to 1000-2500 ft agl.
* Transport Winds.......South 20 to 25 mph becoming west 10 to 15
  mph after midnight.
* CWR...................20 percent.

.FRIDAY...
* Sky/Weather...........Mostly cloudy. Chance of showers in the
  morning, then showers likely and chance of thunderstorms in the
  afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......68-75...55-65 higher elevations.
   24 hr trend......1 degree down...6 degrees down higher
elevations.
* Min Humidity..........40-47 percent...51-61 percent higher
  elevations.
   24 hr trend......Unchanged...7 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...West winds 5 to 10 mph.
     Ridges.............West winds 5 to 10 mph.
* Mixing Height.........1000-2000 ft agl increasing to 5000-6500 ft
  agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................30 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
West winds 10 to 15 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the lower 70s. West winds 10 to 15 mph.
.MONDAY...Mostly cloudy. Chance of showers. Lows in the upper
40s. Highs in the upper 60s. West winds 15 to 20 mph.
.TUESDAY...Mostly cloudy. Chance of showers. Lows in the mid 40s.
Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 40s. Highs in the upper 60s.

$$

MTZ115-112245-
Chouteau and Fergus Counties-
209 AM MDT Thu Sep 11 2025

.TODAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......74-79...64-72 higher elevations.
   24 hr trend......6 degrees down.
* Min Humidity..........40-45 percent.
   24 hr trend......14 percent up...20 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 5 to 10 mph.
* Mixing Height.........500-1500 ft agl increasing to 2500-4000 ft
  agl late in the morning.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms through the night.
* Chance Lightning.......20 percent.
* Min Temperature.......50-55.
   24 hr trend......2 degrees down.
* Max Humidity..........83-93 percent.
   24 hr trend......3 percent down...17 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph.
     Ridges.............West winds 10 to 15 mph.
* Mixing Height.........1500-3000 ft agl decreasing to BELOW 1000
  ft agl early in the evening.
* Transport Winds.......West 10 to 15 mph.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......73-78...65-71 higher elevations.
   24 hr trend......1 degree down.
* Min Humidity..........39-46 percent.
   24 hr trend......2 percent up.
* 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 4000-5500 ft
  agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s.
Southwest winds 10 to 15 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the upper 70s. West winds 10 to 15 mph.
.MONDAY...Partly cloudy. Slight chance of showers. Lows in the
lower 50s. Highs in the upper 70s. West winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers. Lows in the lower
50s. Highs in the lower 70s.
.WEDNESDAY...Partly cloudy. Chance of showers. Lows in the upper
40s. Highs in the lower 70s.

$$

MTZ116-118-112245-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
209 AM MDT Thu Sep 11 2025

.TODAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......71-78...62-71 higher elevations.
   24 hr trend......3 degrees down.
* Min Humidity..........34-44 percent.
   24 hr trend......5 percent up...12 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...North winds 10 to 15 mph shifting to the
northwest in the afternoon.
     Ridges.............East winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 3000-4500 ft
  agl late in the morning, then increasing to 7000-7500 ft agl in
  the afternoon decreasing to 5500 ft agl late in the afternoon.
* Transport Winds.......Northeast 15 to 20 mph shifting to the east
  in the afternoon.
* CWR...................10 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
  thunderstorms in the evening. Chance of showers after midnight.
* Chance Lightning.......20 percent.
* Min Temperature.......44-51.
   24 hr trend......5 degrees down.
* Max Humidity..........81-91 percent.
   24 hr trend......10 percent up.
* Wind (20 FT).
     Lower Elevations...North winds around 5 mph shifting to the
southwest after midnight.
     Ridges.............East winds around 5 mph shifting to the
southwest after midnight.
* Mixing Height.........4000 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......North 15 to 20 mph shifting to the
  northwest after midnight.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Chance of thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......67-75...57-67 higher elevations.
   24 hr trend......4 degrees down.
* Min Humidity..........38-48 percent.
   24 hr trend......2 percent up...8 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...West winds around 5 mph.
     Ridges.............West winds around 5 mph.
* Mixing Height.........1000-2500 ft agl increasing to 3500-5000 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 6000 ft agl.
* Transport Winds.......West 10 to 15 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
West winds around 5 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the lower 70s. Southwest winds 10 to 15 mph.
.MONDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the upper 60s.
Southwest winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Slight chance of showers. Lows in the
mid 40s. Highs in the upper 60s.

$$

MTZ117-112245-
Central and Eastern Lewis and Clark National Forest Areas-
209 AM MDT Thu Sep 11 2025

.TODAY...
* Sky/Weather...........Partly sunny. Chance of showers through the
  day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......72-77...62-71 higher elevations.
   24 hr trend......7 degrees down.
* Min Humidity..........35-45 percent.
   24 hr trend......17 percent up.
* Wind (20 FT).
     Lower Elevations...Northwest winds around 5 mph shifting to
the northeast in the afternoon.
     Ridges.............South winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 3000-4000 ft
  agl late in the morning, then increasing to 5500-6500 ft agl in
  the afternoon decreasing to 4500 ft agl late in the afternoon.
* Transport Winds.......North 10 to 15 mph increasing to east 20 to
  25 mph in the afternoon.
* CWR...................20 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and slight
  chance of thunderstorms.
* Chance Lightning.......20 percent.
* Min Temperature.......44-52.
   24 hr trend......Unchanged...5 degrees down higher elevations.
* Max Humidity..........78-88 percent.
   24 hr trend......15 percent up.
* Wind (20 FT).
     Lower Elevations...Southwest winds 5 to 10 mph.
     Ridges.............Southwest winds 5 to 10 mph.
* Mixing Height.........1500-3000 ft agl decreasing to 1000 ft agl
  early in the evening.
* Transport Winds.......Southeast 20 to 25 mph becoming southwest
  10 to 15 mph after midnight.
* CWR...................10 percent.

.FRIDAY...
* Sky/Weather...........Partly sunny. Chance of showers in the
  morning, then showers likely and slight chance of thunderstorms
  in the afternoon.
* Chance Lightning.......20 percent.
* Max Temperature.......69-76...60-69 higher elevations.
   24 hr trend......1 degree down.
* Min Humidity..........35-45 percent.
   24 hr trend......2 percent down.
* 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 3500-5000 ft
  agl late in the morning, then increasing to 6500-7500 ft agl in
  the afternoon decreasing to 5500 ft agl late in the afternoon.
* Transport Winds.......Southwest 10 to 15 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the upper 40s. Highs in the lower 70s.
Southwest winds 10 to 15 mph.
.SUNDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the lower 70s. Southwest winds 10 to 15 mph.
.MONDAY...Partly cloudy. Chance of showers. Lows in the upper
40s. Highs in the lower 70s. Southwest winds 10 to 15 mph.
.TUESDAY...Mostly cloudy. Chance of showers. Lows in the upper
40s. Highs in the mid 60s.
.WEDNESDAY...Partly cloudy. Chance of showers. Lows in the mid
40s. Highs in the upper 60s.

$$

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