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

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FNUS55 KMSO 302010
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
210 PM MDT Sat Aug 30 2025


.DISCUSSION...

Idaho (Zones 102 and 103): High pressure will strengthen over the region
through the weekend, allowing for warmer and drier conditions.
Anticipate the development of thermal belts at night with poor RH
recoveries on the midslopes and ridges. Winds will generally be terrain
driven. Smoke from regional wildfires will gradually increase. The ridge
will likely stay in place through early next week.

Northwest MT (Zones 104 and 105): High pressure will strengthen over the region
through the weekend, allowing for warmer and drier conditions.
Anticipate the development of thermal belts at night with poor RH
recoveries on the midslopes and ridges. Winds will generally be terrain
driven. Smoke from regional wildfires will gradually increase. The ridge
will likely stay in place through early next week.

West Central MT (Zones 106, 107 and 108):High pressure will strengthen over the region
through the weekend, allowing for warmer and drier conditions.
Anticipate the development of thermal belts at night with poor RH
recoveries on the midslopes and ridges. Winds will generally be terrain
driven. Smoke from regional wildfires will gradually increase. The ridge
will likely stay in place through early next week.

Southwest MT (Zones 109, 110 and 111): High pressure will strengthen over the region
through the weekend, allowing for warmer and drier conditions.
Anticipate the development of thermal belts at night with poor RH
recoveries on the midslopes and ridges. Winds will generally be terrain
driven. Smoke from regional wildfires will gradually increase. The ridge
will likely stay in place through early next week.

IDZ102-103-312015-
Palouse/Hells Canyon-Clearwater/Nez Perce-
110 PM PDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke and haze.
* Min Temperature.....53-63.
* Max Humidity........45-55 percent valleys and 32-42 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-10 mph.
*     Ridge Top............North 5-10 mph becoming southeast after
      midnight.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2100.
* Transport Winds.....Variable less than 10 mph until 2000, then
  southeast 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Haze in the morning. Areas of
  smoke.
* Max Temperature.....93-103 valleys and 75-85 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southeast 5-10 mph.
* Mixing Height.......1-2 kft agl until 1100. Greater than 12 kft
  agl after 1500.
* Transport Winds.....Southeast 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke after midnight.
* Min Temperature.....55-65.
* Max Humidity........45-55 percent valleys and 32-42 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-10 mph.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......12 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2100.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent in the Palouse/Hells
  Canyon...and 0 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....95-105 valleys and 80-90 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southeast 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. Greater
  than 12 kft agl after 1600.
* Transport Winds.....Southeast 10 mph until 1400, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 60-70. Highs 90-100. Min humidities
15-25 percent. East winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 60-70. Highs 90-100. Min humidities
15-25 percent. East winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 60-70. Highs 85-95. East winds 5-10 mph.
.FRIDAY...Partly cloudy. Lows 60-70. Highs 85-95.
.SATURDAY...Partly cloudy. Lows 60-70. Highs 80-90.

$$

MTZ104-105-312015-
Kootenai-Flathead/Glacier Park-
210 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....50-60.
* Max Humidity........67-77 percent valleys and 43-53 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............Southwest 5-15 mph.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....West 15 mph until 2000, then variable less
  than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....85-95 valleys and 70-80 ridges.
* Min Humidity........13-23 percent valleys and 20-30 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southwest 5-10 mph becoming west in the
      afternoon.
* Mixing Height.......2 kft agl until 1100. 11 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1200, then
  west 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Min Temperature.....50-60.
* Max Humidity........61-71 percent valleys and 40-50 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-10 mph.
*     Ridge Top............East 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Variable less than 10 mph until 1900, then
  east 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-100 valleys and 75-85 ridges.
* Min Humidity........9-19 percent valleys and 19-29 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............East 5-15 mph becoming southeast up to 5 mph
      in the afternoon.
* Mixing Height.......3 kft agl until 1100. Greater than 12 kft agl
  after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. Northeast winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Northeast winds 10-15 mph.
.THURSDAY...Mostly clear. Lows 55-65. Highs 85-95. Northeast winds
5-10 mph.
.FRIDAY...Mostly clear. Lows 55-65. Highs 80-90.
.SATURDAY...Partly cloudy. Lows 55-65. Highs 75-85.

$$

MTZ106-108-312015-
West Lolo-East Lolo-
210 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....48-58.
* Max Humidity........51-61 percent valleys and 36-46 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............West 5-10 mph becoming southwest after
      midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....West 15 mph until 2000, then variable less
  than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* 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............South 5-10 mph becoming northwest up to 5
      mph in the afternoon.
* Mixing Height.......2 kft agl until 1100. 11 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke after midnight.
* Min Temperature.....50-60.
* Max Humidity........48-58 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-10 mph.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft agl
  after 2000.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent in the West Lolo...and 0
  percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-100 valleys and 78-88 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......2 kft agl until 1100. Greater than 12 kft agl
  after 1500.
* Transport Winds.....Southeast 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. East winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. East winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 55-65. Highs 85-95. East winds 5-10 mph.
.FRIDAY...Mostly clear. Lows 55-65. Highs 80-90.
.SATURDAY...Partly cloudy. Lows 55-65. Highs 80-90.

$$

MTZ107-312015-
Flathead Reservation-
210 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....50-60.
* Max Humidity........57-67 percent valleys and 39-49 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............Southwest 10-15 mph.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Southwest 10 mph until 2400, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southwest 5-15 mph becoming northwest up to
      5 mph in the afternoon.
* Mixing Height.......3 kft agl until 1200. 10 kft agl after 1600.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke after midnight.
* Min Temperature.....55-60.
* Max Humidity........55-65 percent valleys and 37-47 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-10 mph.
*     Ridge Top............Northeast 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2100.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....95-100 valleys and 70-75 ridges.
* Min Humidity........14-24 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............East 5-15 mph becoming southeast up to 5 mph
      in the afternoon.
* Mixing Height.......1-2 kft agl until 1100. 11 kft agl after
  1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 60-70. Highs 90-100. Min humidities
10-20 percent. Northeast winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities
15-25 percent. Northeast winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 60-70. Highs 85-95. Northeast winds
5-10 mph.
.FRIDAY...Partly cloudy. Lows 55-65. Highs 85-95.
.SATURDAY...Partly cloudy. Lows 55-65. Highs 80-90.

$$

MTZ109-312015-
Bitterroot-
210 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....50-60.
* Max Humidity........57-67 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......West 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............Northwest 5-10 mph becoming southeast after
      midnight.
* Mixing Height.......9 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....Northwest 10 mph until 2100, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........14-24 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............South 5-10 mph.
* Mixing Height.......2 kft agl until 1100. 11 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Min Temperature.....45-55 valleys and 55-60 ridges.
* Max Humidity........55-65 percent valleys and 38-48 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph becoming
      southeast 5-10 mph after midnight.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......10 kft agl until 1900. 1-2 kft agl after
  2000.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny. Areas of smoke in the morning.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southeast 5-10 mph.
* Mixing Height.......1-2 kft agl until 1000. Greater than 12 kft
  agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. East winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. East winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 55-65. Highs 80-90. Southwest winds
5-10 mph.
.FRIDAY...Partly cloudy. Lows 55-65. Highs 80-90.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85.

$$

MTZ110-111-312015-
Deerlodge/West Beaverhead-East Beaverhead-
210 PM MDT Sat Aug 30 2025

.TONIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....33-43 valleys and 45-55 ridges.
* Max Humidity........64-74 percent valleys and 42-52 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northwest 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............Northwest 10-15 mph becoming west 5-10 mph
      after midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Northwest 15 mph until 2100, then variable
  less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke in the morning.
  Haze.
* Max Temperature.....80-85 valleys and 70-75 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southwest 5-10 mph becoming northwest in the
      afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. 11 kft
  agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....38-48 valleys and 45-55 ridges.
* Max Humidity........59-69 percent valleys and 38-48 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......East 5-10 mph becoming southeast after
      midnight.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.LABOR DAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-90 valleys and 70-80 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............Southeast 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. 11 kft
  agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities
10-20 percent. Northeast winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities
15-25 percent. North winds 10-15 mph.
.THURSDAY...Mostly clear. Lows 50-60. Highs 75-85. North winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy with chance of rain showers. Chance of
showers 30 percent. Lows 50-60. Highs 75-85.

$$