Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
434
FNUS55 KMSO 201024
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
324 AM MST Thu Nov 20 2025
.DISCUSSION...
Idaho (Zones 102 and 103): Cloudy today, with valley fog in the morning
and chances for rain/snow. Expect similar conditions through the
weekend... mild temperatures under partly cloudy skies and chances for
precipitation. Monday will bring a change towards a more wintry pattern.
Northwest MT (Zones 104 and 105): Partly cloudy today with valley fog
in the morning. Increasing clouds on Friday, with chances for rain/snow.
Expect similar conditions through the weekend... mild temperatures under
cloudy skies and chances for precipitation. Monday will bring a change
towards a more wintry pattern.
West Central MT (Zones 106, 107 and 108): Partly cloudy today with valley
fog in the morning. Increasing clouds on Friday, with chances for
rain/snow. Expect similar conditions through the weekend... mild
temperatures under partly cloudy skies and chances for precipitation.
Monday will bring a change towards a more wintry pattern.
Southwest MT (Zones 109, 110 and 111): Partly cloudy today with valley
fog in the morning. Expect similar conditions on Friday and through the
weekend... mild temperatures under partly cloudy skies. Monday will
bring a change towards a more wintry pattern.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-211030-
Palouse/Hells Canyon-Clearwater/Nez Perce-
224 AM PST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain and slight
chance of snow. Snow level 6000 feet.
* Max Temperature.....45-55 valleys and 35-45 ridges.
* Min Humidity........69-79 percent valleys and 75-85 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph becoming west up to 5 mph in
the afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent in the Palouse/Hells Canyon...and
near 0 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Slight chance of rain. Patchy
fog after midnight. Snow level 5500 feet.
* Min Temperature.....35-40 valleys and 25-30 ridges.
* Max Humidity........82-92 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 1-3 mph.
* Ridge Top............Northwest up to 5 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of snow.
* Max Temperature.....45-55 valleys and 35-45 ridges.
* Min Humidity........62-72 percent valleys and 69-79 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Partly cloudy. Lows 30-40. Highs 45-55. Min humidities
50-60 percent. Variable winds up to 10 mph.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 30-40. Highs 50-60. Min humidities 50-60 percent.
South winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with snow and chance of rain. Chance of
precipitation 80 percent. Lows 35-45. Highs 40-50. Southwest winds
10-15 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
50 percent. Lows 25-35. Highs 35-45.
.WEDNESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 20-30. Highs 35-45.
$$
MTZ104-105-211030-
Kootenai-Flathead/Glacier Park-
324 AM MST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....45-50 valleys and 30-40 ridges.
* Min Humidity........60-70 percent valleys and 71-81 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1400, then 2
kft agl.
* Transport Winds.....Variable less than 10 mph until 1100, then
southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-30.
* Max Humidity........95-100 percent valleys and 80-90 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming variable less than 5 mph
after midnight.
* Ridge Top............West 10-20 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Mostly cloudy. Chance of snow and chance of
rain. Snow level 4500 feet.
* Max Temperature.....40-45 valleys and 30-35 ridges.
* Min Humidity........61-71 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......1-2 kft agl until 1200, then 3 kft agl.
* Transport Winds.....West 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 30 percent. Lows 30-40. Highs 40-50. Min humidities
60-70 percent. Southwest winds 10-20 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 30-40. Highs 40-50. Min humidities
60-70 percent. Southwest winds 10-15 mph.
.MONDAY...Mostly cloudy with snow with rain likely. Chance of
precipitation 80 percent. Lows 30-40. Highs 35-45. Southwest winds
15-25 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
.WEDNESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 15-25. Highs 25-35.
$$
MTZ106-108-211030-
West Lolo-East Lolo-
324 AM MST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Patchy fog in the morning.
* Max Temperature.....35-45.
* Min Humidity........60-70 percent valleys and 68-78 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1400, then 2
kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-35.
* Max Humidity........84-94 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of snow.
* Max Temperature.....35-45.
* Min Humidity........56-66 percent valleys and 67-77 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1200, then 2
kft agl.
* Transport Winds.....West 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Partly cloudy with slight chance of rain and snow. Chance
of precipitation 20 percent. Lows 30-40. Highs 40-50. Min humidities
50-60 percent. Southwest winds 5-10 mph.
.SUNDAY...Partly cloudy with slight chance of rain and snow. Chance of
precipitation 20 percent. Lows 30-40. Highs 45-55. Min humidities
50-60 percent. Southwest winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with snow likely and chance of rain.
Chance of precipitation 70 percent. Lows 30-40. Highs 35-45. Southwest
winds 10-20 mph.
.TUESDAY...Partly cloudy with chance of snow. Chance of snow
40 percent. Lows 20-30. Highs 30-40.
.WEDNESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 15-25. Highs 30-40.
$$
MTZ107-211030-
Flathead Reservation-
324 AM MST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....45-50 valleys and 30-35 ridges.
* Min Humidity........69-79 percent valleys and 78-88 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-35.
* Max Humidity........83-93 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Mostly cloudy.
* Max Temperature.....45-50 valleys and 25-30 ridges.
* Min Humidity........65-75 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1200, then 3
kft agl until 1600, then 2 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Mostly cloudy with slight chance of rain and snow. Chance
of precipitation 20 percent. Lows 30-40. Highs 45-55. Min humidities
60-70 percent. Southwest winds 5-10 mph.
.SUNDAY...Mostly cloudy with slight chance of rain and snow. Chance of
precipitation 20 percent. Lows 30-40. Highs 45-55. Min humidities
55-65 percent. South winds 5-10 mph.
.MONDAY...Mostly cloudy with snow and chance of rain. Chance of
precipitation 80 percent. Lows 35-45. Highs 40-50. Southwest winds
10-20 mph.
.TUESDAY...Partly cloudy with chance of snow. Chance of snow
30 percent. Lows 25-35. Highs 35-45.
.WEDNESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 20-30. Highs 30-40.
$$
MTZ109-211030-
Bitterroot-
324 AM MST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-55 valleys and 35-40 ridges.
* Min Humidity........53-63 percent valleys and 66-76 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph.
* Mixing Height.......1-2 kft agl until 1300, then 2 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-35.
* Max Humidity........90-100 percent valleys and 84-94 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-55 valleys and 35-40 ridges.
* Min Humidity........51-61 percent valleys and 62-72 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......1-2 kft agl until 1300, then 2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Partly cloudy. Lows 30-40. Highs 45-55. Min humidities
40-50 percent. Southwest winds 5-10 mph.
.SUNDAY...Partly cloudy. Lows 30-40. Highs 45-55. Min humidities
45-55 percent. Southwest winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with snow likely and chance of rain.
Chance of precipitation 60 percent. Lows 30-40. Highs 35-45. Southwest
winds 10-20 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
.WEDNESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 15-25. Highs 30-40.
$$
MTZ110-111-211030-
Deerlodge/West Beaverhead-East Beaverhead-
324 AM MST Thu Nov 20 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Patchy fog in the morning.
* Max Temperature.....45-50 valleys and 35-45 ridges.
* Min Humidity........45-55 percent valleys and 57-67 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1200, then 3
kft agl.
* Transport Winds.....South 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....20-30.
* Max Humidity........89-99 percent valleys and 76-86 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....45-50 valleys and 35-40 ridges.
* Min Humidity........41-51 percent valleys and 48-58 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1300, then
1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...Partly cloudy. Lows 25-35. Highs 40-50. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.SUNDAY...Partly cloudy. Lows 25-35. Highs 45-55. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.MONDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 25-35. Highs 40-50. Southwest winds 10-20 mph.
.TUESDAY...Colder. Partly cloudy with slight chance of snow. Chance of
snow 20 percent. Lows 15-25. Highs 30-40.
.WEDNESDAY...Partly cloudy. Lows 10-20. Highs 30-40.
$$