453
FNUS55 KTFX 060949
FWFTFX

Fire Weather Planning Forecast for North-Central Montana
National Weather Service Great Falls MT
349 AM MDT Wed Aug 6 2025

.DISCUSSION...

Dry and breezy conditions are expected through the late afternoon
hours today before an approaching Pacific trough and attendant
cold front brings a couple of waves of showers and thunderstorms
tonight through Thursday evening. Localized strong wind gusts and
lightning will be the primary hazards west of I15 while areas to
the east may also observe hail and brief heavy downpours.
Afternoon temperatures cool as much as 10 to 20 degrees below
average on Friday with breezy to windy conditions and periods of
showers and embedded thunderstorms. The colder air aloft may even
initiate some light snow over the highest mountain peaks Friday
morning, especially over the central island ranges.


MTZ112-062215-
Eastern Glacier/Toole/Central/Eastern Pondera/Liberty-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Partly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......75-85...66-74 higher elevations.
   24 hr trend......7 degrees up...1 degree up higher elevations.
* Min Humidity..........25-34 percent.
   24 hr trend......17 percent down...11 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* Mixing Height.........500-1000 ft agl increasing to 9500-10500 ft
  agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers in
  the evening. Chance of thunderstorms through the night. Chance of
  showers after midnight.
* Chance Lightning.......30 percent.
* Min Temperature.......51-57.
   24 hr trend......5 degrees up.
* Max Humidity..........69-79 percent.
   24 hr trend......3 percent down...12 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* Mixing Height.........8500 ft agl decreasing to 500-1500 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.

.THURSDAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
  thunderstorms through the day.
* Chance Lightning.......20 percent.
* Max Temperature.......68-78...58-68 higher elevations.
   24 hr trend......14 degrees down...9 degrees down higher
elevations.
* Min Humidity..........38-48 percent...49-59 percent higher
  elevations.
   24 hr trend......20 percent up...15 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* Mixing Height.........500-1500 ft agl increasing to 2500-3500 ft
  agl late in the morning, then increasing to 5000-6500 ft agl late
  in the morning increasing to 6500-7500 ft agl in the afternoon
  decreasing to 5500 ft agl.
* Transport Winds.......West around 25 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the upper 40s. Highs in the mid 60s. West winds 20 to
25 mph.
.SATURDAY...Mostly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
West winds 15 to 20 mph.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 15 to 20 mph.
.MONDAY...Partly cloudy. Lows in the mid 50s. Highs around 80.
.TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s.

$$

MTZ113-062215-
Hill and Blaine Counties-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......82-87...74-79 higher elevations.
   24 hr trend......10 degrees up.
* Min Humidity..........25-32 percent.
   24 hr trend......22 percent down...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.........500-1000 ft agl increasing to 9000-10000 ft
  agl.
* Transport Winds.......West 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
  thunderstorms in the evening, then chance of showers and
  thunderstorms after midnight.
* Chance Lightning.......50 percent.
* Min Temperature.......55-60.
   24 hr trend......5 degrees up.
* Max Humidity..........75-85 percent.
   24 hr trend......6 percent down...10 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........8500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......North 15 to 20 mph.
* CWR...................20 percent.

.THURSDAY...
* Sky/Weather...........Mostly cloudy then becoming mostly sunny.
  Chance of thunderstorms in the morning. Chance of showers through
  the day. Slight chance of thunderstorms in the afternoon.
* Chance Lightning.......40 percent.
* Max Temperature.......77-82...69-74 higher elevations.
   24 hr trend......7 degrees down.
* Min Humidity..........38-48 percent.
   24 hr trend......12 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 5000-6500 ft agl
  early in the afternoon increasing to 6000-7500 ft agl early in
  the afternoon decreasing to 5000 ft agl.
* Transport Winds.......West 20 to 25 mph.
* CWR...................10 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Cooler. Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs in the upper 60s.
West winds 15 to 20 mph.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the lower 70s.
West winds 20 to 25 mph.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. West winds 15 to 20 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s.

$$

MTZ114-062215-
Lewis and Clark National Forest Rocky Mountain District-
Rocky Mountain Front-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......76-85...64-74 higher elevations.
   24 hr trend......3 degrees up.
* Min Humidity..........23-32 percent...31-41 percent higher
  elevations.
   24 hr trend......4 percent down...7 percent up higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 15 to 20 mph.
     Ridges.............Southwest winds 15 to 20 mph.
* Mixing Height.........1000-2000 ft agl increasing to 9500-11000
  ft agl.
* Transport Winds.......Southwest 20 to 25 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
  thunderstorms.
* Chance Lightning.......30 percent.
* Min Temperature.......51-56...45-51 higher elevations.
   24 hr trend......5 degrees up.
* Max Humidity..........69-79 percent.
   24 hr trend......8 percent up.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* Mixing Height.........8500 ft agl decreasing to 1000-2000 ft agl.
* Transport Winds.......West around 25 mph.
* CWR...................10 percent.

.THURSDAY...
* Sky/Weather...........Partly sunny. Slight chance of showers and
  thunderstorms in the morning, then chance of showers and
  thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......69-77...55-65 higher elevations.
   24 hr trend......6 degrees down.
* Min Humidity..........37-47 percent...52-62 percent higher
  elevations.
   24 hr trend......18 percent up.
* Wind (20 FT).
     Lower Elevations...West winds 15 to 20 mph.
     Ridges.............West winds 15 to 20 mph.
* Mixing Height.........1000-2500 ft agl increasing to 4000-5500 ft
  agl late in the morning, then increasing to 5500-7000 ft agl in
  the afternoon decreasing to 4500 ft agl late in the afternoon.
* Transport Winds.......West around 25 mph.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Mostly cloudy. Chance of showers and thunderstorms.
Lows in the mid 40s. Highs in the mid 60s. West winds 20 to
25 mph.
.SATURDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the upper 40s. Highs around 70. West winds
20 to 25 mph.
.SUNDAY...Partly cloudy. Lows around 50. Highs in the upper 70s.
West winds 15 to 20 mph.
.MONDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s.
.TUESDAY...Partly cloudy. Lows in the mid 50s. Highs in the upper
70s.

$$

MTZ115-062215-
Chouteau and Fergus Counties-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Mostly sunny. Haze in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......83-88...74-81 higher elevations.
   24 hr trend......7 degrees up.
* Min Humidity..........24-30 percent.
   24 hr trend......14 percent down.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph.
     Ridges.............West winds 5 to 10 mph.
* Mixing Height.........500-1000 ft agl increasing to 10000-10500
  ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
  thunderstorms in the evening, then chance of showers and
  thunderstorms after midnight.
* Chance Lightning.......50 percent.
* Min Temperature.......55-61.
   24 hr trend......5 degrees up.
* Max Humidity..........72-82 percent.
   24 hr trend......3 percent up...8 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Northeast winds around 5 mph shifting to
the northwest after midnight.
     Ridges.............East winds 10 to 15 mph shifting to the
north after midnight.
* Mixing Height.........8500 ft agl decreasing to 500-1000 ft agl.
* Transport Winds.......East 15 to 20 mph shifting to the north
  after midnight.
* CWR...................20 percent.

.THURSDAY...
* Sky/Weather...........Partly sunny. Chance of showers and
  thunderstorms.
* Chance Lightning.......40 percent.
* Max Temperature.......77-82...68-75 higher elevations.
   24 hr trend......7 degrees down.
* Min Humidity..........38-46 percent...46-56 percent higher
  elevations.
   24 hr trend......14 percent up.
* Wind (20 FT).
     Lower Elevations...West winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........1000-2500 ft agl increasing to 4000-5500 ft
  agl late in the morning, then increasing to 5500-7000 ft agl
  early in the afternoon decreasing to 4000 ft agl late in the
  afternoon.
* Transport Winds.......Northwest 20 to 25 mph.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the lower 50s. Highs around 70. West winds
20 to 25 mph.
.SATURDAY...Mostly cloudy. Chance of showers and slight chance of
thunderstorms. Lows in the lower 50s. Highs in the mid 70s. West
winds 20 to 25 mph.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 80s. West winds 15 to 20 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the mid 50s. Highs in the lower 80s.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the mid
80s.

$$

MTZ116-118-062215-
Lincoln Ranger District of the Helena National Forest-
Helena and Townsend Ranger Districts of the Helena National
Forest-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Mostly sunny.
* Chance Lightning.......0 percent.
* Max Temperature.......79-88...69-79 higher elevations.
   24 hr trend......6 degrees up.
* Min Humidity..........18-28 percent.
   24 hr trend......1 percent down...6 percent down higher
elevations.
* Wind (20 FT).
     Lower Elevations...Southwest winds 10 to 15 mph.
     Ridges.............Southwest winds 10 to 15 mph.
* Mixing Height.........1000-2000 ft agl increasing to 12000 ft
  agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Slight chance of showers and
  thunderstorms.
* Chance Lightning.......20 percent.
* Min Temperature.......48-56.
   24 hr trend......2 degrees up.
* Max Humidity..........62-72 percent.
   24 hr trend......3 percent up...8 percent up higher elevations.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........10000 ft agl decreasing to 1000 ft agl.
* Transport Winds.......Northwest 15 to 20 mph.
* CWR...................10 percent.

.THURSDAY...
* Sky/Weather...........Mostly sunny then becoming mostly cloudy.
  Chance of showers and thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......72-82...62-72 higher elevations.
   24 hr trend......7 degrees down...12 degrees down higher
elevations.
* Min Humidity..........35-45 percent.
   24 hr trend......11 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 3500-4500 ft
  agl late in the morning, then increasing to 5500-6500 ft agl
  early in the afternoon increasing to 7500-9000 ft agl early in
  the afternoon decreasing to 5000 ft agl.
* Transport Winds.......West 20 to 25 mph increasing to around 30
  mph in the afternoon.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. West
winds 20 to 25 mph.
.SATURDAY...Partly cloudy. Lows in the upper 40s. Highs around
70. West winds 15 to 20 mph.
.SUNDAY...Partly cloudy. Lows in the upper 40s. Highs in the
upper 70s. West winds 15 to 20 mph.
.MONDAY...Mostly clear. Lows in the lower 50s. Highs around 80.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the lower
80s.

$$

MTZ117-062215-
Central and Eastern Lewis and Clark National Forest Areas-
349 AM MDT Wed Aug 6 2025

.TODAY...
* Sky/Weather...........Mostly sunny. Haze in the morning.
* Chance Lightning.......0 percent.
* Max Temperature.......80-87...71-79 higher elevations.
   24 hr trend......8 degrees up.
* Min Humidity..........21-30 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.........1000-2000 ft agl increasing to 11000-11500
  ft agl.
* Transport Winds.......Southwest 15 to 20 mph.
* CWR...................0 percent.

.TONIGHT...
* Sky/Weather...........Mostly cloudy. Chance of showers and
  thunderstorms through the night.
* Chance Lightning.......40 percent.
* Min Temperature.......48-57.
   24 hr trend......2 degrees up.
* Max Humidity..........67-77 percent.
   24 hr trend......4 percent up.
* Wind (20 FT).
     Lower Elevations...Northwest winds 10 to 15 mph.
     Ridges.............Northwest winds 10 to 15 mph.
* Mixing Height.........9500 ft agl decreasing to 1000-1500 ft agl.
* Transport Winds.......North 15 to 20 mph.
* CWR...................10 percent.

.THURSDAY...
* Sky/Weather...........Mostly sunny then becoming mostly cloudy.
  Slight chance of showers and thunderstorms in the morning, then
  chance of showers and thunderstorms in the afternoon.
* Chance Lightning.......50 percent.
* Max Temperature.......74-79...64-74 higher elevations.
   24 hr trend......6 degrees down.
* Min Humidity..........35-45 percent.
   24 hr trend......15 percent up...23 percent up higher
elevations.
* 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 3500-4500 ft
  agl late in the morning, then increasing to 6000-7500 ft agl in
  the afternoon decreasing to 4000 ft agl late in the afternoon.
* Transport Winds.......Northwest 15 to 20 mph increasing to west
  around 25 mph in the afternoon.
* CWR...................20 percent.


.FORECAST DAYS 3 THROUGH 7......
.FRIDAY...Windy. Mostly cloudy. Showers likely and chance of
thunderstorms. Lows in the mid 40s. Highs in the mid 60s. West
winds around 25 mph.
.SATURDAY...Partly cloudy. Slight chance of showers. Lows in the
upper 40s. Highs in the upper 60s. West winds 20 to 25 mph.
.SUNDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid
70s. West winds 15 to 20 mph.
.MONDAY...Partly cloudy. Slight chance of showers and
thunderstorms. Lows in the lower 50s. Highs in the upper 70s.
.TUESDAY...Mostly clear. Lows in the mid 50s. Highs in the upper
70s.

$$

weather.gov/greatfalls