280
FNUS55 KMSO 221042
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
442 AM MDT Fri Aug 22 2025


.DISCUSSION...

Idaho (Zones 102 and 103): The winds will become northeasterly by this
afternoon across the region. Then a ridge of high pressure will be
building over the area this weekend and lasting into next week. This
ridge will bring hot and dry conditions along with strengthening thermal
belts. Monsoonal moisture will start to make its way into the region by
mid next week, potential causing a few showers and thunderstorms for
southern 103.

Northwest MT (Zones 104 and 105): Gusty northeasterly winds will persist
throughout the day with the strongest winds being across zone 105. A
ridge of high pressure will be building over the areas this weekend and
lasting into next week. This ridge will bring hot and dry conditions
along with strengthening thermal belts.

West Central MT (Zones 106, 107 and 108): The winds will become
northeasterly by this afternoon across the region. Then a ridge of
high pressure will be building over the area this weekend and lasting
into next week. This ridge will bring hot and dry conditions along with
strengthening thermal belts.

Southwest MT (Zones 109, 110 and 111): The winds will become
northeasterly by this afternoon across the region. Then a ridge of
high pressure will be building over the area this weekend and lasting
into next week. This ridge will bring hot and dry conditions along with
strengthening thermal belts. Monsoonal moisture will start to make its
way into the region by Monday causing high based showers and
thunderstorms.

IDZ102-103-231045-
Palouse/Hells Canyon-Clearwater/Nez Perce-
342 AM PDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....90-100 valleys and 75-85 ridges.
* Min Humidity........11-21 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Northeast 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 8 kft agl after 1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....50-60.
* Max Humidity........43-53 percent valleys and 36-46 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-10 mph.
*     Ridge Top............Northeast 5-10 mph becoming east 5-15 mph
      after midnight.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....95-105 valleys and 80-90 ridges.
* Min Humidity........9-16 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southeast 5-10 mph becoming northwest in the
      afternoon.
* Mixing Height.......2 kft agl until 1100. 9 kft agl after 1600.
* Transport Winds.....Variable less than 10 mph until 1600.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Partly cloudy. Lows 60-70. Highs 90-100. Min humidities
15-25 percent. Northeast winds 5-10 mph.
.MONDAY...Partly cloudy. Lows 60-70. Highs 90-100. Min humidities
15-25 percent. Northeast winds 5-10 mph.
.TUESDAY...Partly cloudy. Lows 60-70. Highs 85-95. Northeast winds
5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 60-70. Highs 85-95.
.THURSDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 60-70. Highs 80-90.

$$

MTZ104-105-231045-
Kootenai-Flathead/Glacier Park-
442 AM MDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....80-90 valleys and 60-70 ridges.
* Min Humidity........17-27 percent valleys and 32-42 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 10-20 mph.
*     Ridge Top............East 10-20 mph.
* Mixing Height.......3 kft agl until 1000. 7 kft agl after 1600.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....45-55.
* Max Humidity........74-84 percent valleys and 59-69 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 10-15 mph.
*     Ridge Top............East 10-15 mph.
* Mixing Height.......5 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-95 valleys and 70-80 ridges.
* Min Humidity........11-21 percent valleys and 24-34 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............East 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1600.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Mostly clear. Lows 50-60. Highs 80-90. Min humidities
10-20 percent. East winds 10-15 mph.
.MONDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. East winds 5-10 mph.
.TUESDAY...Mostly clear. Lows 55-65. Highs 85-95. East winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 80-90.
.THURSDAY...Partly cloudy. Lows 55-65. Highs 80-90.

$$

MTZ106-108-231045-
West Lolo-East Lolo-
442 AM MDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....80-90 valleys and 70-80 ridges.
* Min Humidity........14-24 percent valleys and 21-31 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-15 mph.
*     Ridge Top............East 5-15 mph.
* Mixing Height.......3 kft agl until 1000. 7 kft agl after 1500.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear. Haze.
* Min Temperature.....45-55.
* Max Humidity........51-61 percent.
* 20-Foot Winds.......
*     Lower Elevation......East 5-15 mph.
*     Ridge Top............East 10-20 mph.
* Mixing Height.......5 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....East 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-95 valleys and 78-88 ridges.
* Min Humidity........13-23 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1400.
* Transport Winds.....East 10 mph until 1500, then variable less
  than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Partly cloudy. Lows 50-60. Highs 85-95. Min humidities
10-20 percent. East winds 5-10 mph.
.MONDAY...Partly cloudy. Lows 55-65. Highs 85-95. Min humidities
15-25 percent. East winds 5-10 mph.
.TUESDAY...Partly cloudy. Lows 55-65. Highs 85-95. East winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 80-90.
.THURSDAY...Partly cloudy. Lows 55-65. Highs 80-90.

$$

MTZ107-231045-
Flathead Reservation-
442 AM MDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-90 valleys and 65-70 ridges.
* Min Humidity........15-25 percent valleys and 26-36 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-15 mph.
*     Ridge Top............Northeast 5-15 mph.
* Mixing Height.......2 kft agl until 1000. 7 kft agl after 1600.
* Transport Winds.....Northeast 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-55.
* Max Humidity........63-73 percent valleys and 53-63 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 5-10 mph in the evening.
*     Ridge Top............East 10-20 mph.
* Mixing Height.......5 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........12-22 percent valleys and 21-31 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southeast 10-20 mph becoming northeast 5-10
      mph in the afternoon.
* Mixing Height.......2 kft agl until 1100. 7 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Partly cloudy. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. Northeast winds 10-15 mph.
.MONDAY...Partly cloudy. Lows 55-65. Highs 85-95. Min humidities
15-25 percent. Northeast winds 5-10 mph.
.TUESDAY...Partly cloudy. Lows 55-65. Highs 85-95. Northeast winds
10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 60-70. Highs 85-95.
.THURSDAY...Partly cloudy. Lows 60-70. Highs 85-95.

$$

MTZ109-231045-
Bitterroot-
442 AM MDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny. Haze.
* Max Temperature.....85-90 valleys and 70-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming 5-15 mph in the afternoon.
*     Ridge Top............Northeast 5-15 mph.
* Mixing Height.......2 kft agl until 1000. 8 kft agl after 1400.
* Transport Winds.....East 10 mph until 1600, then north 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....45-55.
* Max Humidity........71-81 percent valleys and 54-64 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-15 mph.
*     Ridge Top............Northeast 5-15 mph becoming east after
      midnight.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....Northeast 10 mph until 0200, then east 10
  mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 75-85 ridges.
* Min Humidity........11-20 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southeast 5-10 mph becoming northwest in the
      afternoon.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1100.
  Northwest 10 mph after 1200.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Northeast winds 5-10 mph.
.MONDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Northeast winds 5-10 mph.
.TUESDAY...Partly cloudy. Lows 55-65. Highs 80-90. East winds 5-10 mph.
.WEDNESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
70-80.

$$

MTZ110-111-231045-
Deerlodge/West Beaverhead-East Beaverhead-
442 AM MDT Fri Aug 22 2025

.TODAY...
* Sky/Weather.........Mostly sunny. Haze in the morning.
* Max Temperature.....75-85 valleys and 65-75 ridges.
* Min Humidity........18-28 percent.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-15 mph.
*     Ridge Top............Northeast 5-15 mph.
* Mixing Height.......2 kft agl until 1000. 9 kft agl after 1400.
* Transport Winds.....Northeast 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly clear. Haze.
* Min Temperature.....40-50.
* Max Humidity........82-92 percent valleys and 62-72 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-15 mph.
*     Ridge Top............Northeast 5-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northeast 15 mph until 0300, then variable
  less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SATURDAY...
* Sky/Weather.........Mostly sunny. Haze in the afternoon.
* Max Temperature.....80-85 valleys and 70-80 ridges.
* Min Humidity........11-21 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............East 5-10 mph becoming north in the
      afternoon.
* Mixing Height.......2 kft agl until 1100. 10 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1400, then
  northwest 10 mph.
* Chance Lightning....0 percent in the Deerlodge/West
  Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...Partly cloudy. Lows 50-60. Highs 75-85. Min humidities
10-20 percent. Northeast winds 10-15 mph.
.MONDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 50-60. Highs 75-85. Min humidities
10-20 percent. Northeast winds 10-15 mph.
.TUESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
75-85. East winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 30 percent. Lows
50-60. Highs 75-85.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
70-80.

$$