Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
855
FNUS55 KMSO 202041
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
141 PM MST Thu Nov 20 2025
.DISCUSSION...
Idaho (Zones 102 and 103): - Fog Redevelopment: Where cloud cover
is able to clear, valley fog is expected to reform into Friday
day a quick look at the next 48 hours... Tonight`s weather, mostly
cloudy. Patchy fog through the night. A 20 percent chance of rain
until midnight. Friday, mostly cloudy. Patchy fog in the day Night,
mostly cloudy. Patchy fog until midnight. Saturday, partly cloudy.
Northwest MT (Zones 104 and 105): - Fog Redevelopment: Where cloud
cover is able to clear, valley fog is expected to reform into
Friday day a quick look at the next 48 hours... Tonight`s weather,
partly cloudy until midnight then becoming mostly cloudy. Patchy fog.
Friday, mostly cloudy with a slight chance of snow. Slight chance of
rain in the afternoon. It`ll be cooler. Friday Night, mostly cloudy
with a 50 percent chance of snow. Saturday, mostly cloudy with a
slight chance of snow. Slight chance of rain in the afternoon.
West Central MT (Zones 106, 107 and 108): - Fog Redevelopment:
Where cloud cover is able to clear, valley fog is expected to
reform into Friday day a quick look at the next 48 hours...
Tonight`s weather, partly cloudy until midnight then becoming mostly
cloudy. Patchy fog. Friday, mostly cloudy. Patchy fog in the day`ll
be cooler. Friday Night, mostly cloudy. Saturday, mostly cloudy.
Patchy fog in the day
Southwest MT (Zones 109, 110 and 111): - Fog Redevelopment: Where
cloud cover is able to clear, valley fog is expected to reform
into Friday day a quick look at the next 48 hours... Tonight`s
weather, mostly clear. Friday, partly cloudy. Humidities will be a
little lower. Friday Night, partly cloudy. Saturday, partly cloudy.
Humidities will be a little lower.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-211100-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1241 PM PST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog. Slight chance of
rain. 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.......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. Patchy fog in the morning.
* Max Temperature.....45-55 valleys and 35-45 ridges.
* Min Humidity........64-74 percent valleys and 70-80 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 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.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog in the evening.
* Min Temperature.....25-35.
* Max Humidity........78-88 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............South 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...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-60 valleys and 40-50 ridges.
* Min Humidity........49-59 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph becoming southwest in the
afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 1400, then
1-2 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 30-40. Highs 45-55. Min humidities 50-60 percent.
South winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with rain and snow likely. Chance of
precipitation 70 percent. Lows 30-40. Highs 35-45. Min humidities
50-60 percent. Southwest winds 10-15 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
40 percent. Lows 25-35. Highs 35-45. Southwest winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 40 percent. Lows 25-35. Highs 35-45.
.THANKSGIVING DAY...Mostly cloudy with snow likely and chance of rain.
Chance of precipitation 70 percent. Lows 30-40. Highs 35-45.
$$
MTZ104-105-211100-
Kootenai-Flathead/Glacier Park-
141 PM MST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog.
* Min Temperature.....25-35.
* Max Humidity........95-100 percent valleys and 81-91 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.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of snow. Snow
level 4500 feet.
* Max Temperature.....40-45 valleys and 30-35 ridges.
* Min Humidity........61-71 percent valleys and 73-83 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 15-25 mph.
* Ridge Top............Southwest 15-25 mph.
* Mixing Height.......1-2 kft agl until 1300, then 2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow.
* Min Temperature.....25-30.
* Max Humidity........92-100 percent valleys and 77-87 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Slight chance of snow. Snow
level 4500 feet.
* Max Temperature.....45-50 valleys and 30-40 ridges.
* Min Humidity........54-64 percent valleys and 68-78 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-15 mph.
* Ridge Top............Southwest 10-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1300, then 2
kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 30-40. Highs 40-50. Min humidities
65-75 percent. Southwest winds 10-20 mph.
.MONDAY...Colder. Mostly cloudy with snow and rain. Chance of
precipitation 80 percent. Lows 30-40. Highs 30-40. Min humidities
60-70 percent. Southwest winds 15-25 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
.THANKSGIVING DAY...Mostly cloudy with chance of snow. Chance of snow
50 percent. Lows 20-30. Highs 30-40.
$$
MTZ106-108-211100-
West Lolo-East Lolo-
141 PM MST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog.
* Min Temperature.....25-35.
* Max Humidity........85-95 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. Patchy fog in the morning.
* Max Temperature.....35-45.
* Min Humidity........57-67 percent valleys and 68-78 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.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-30.
* Max Humidity........85-95 percent valleys and 75-85 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............Southwest 10-15 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.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Patchy fog in the morning.
* Max Temperature.....38-48.
* Min Humidity........48-58 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 until 1300, then
1-2 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with chance of rain. Chance of rain 30 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. Min
humidities 45-55 percent. Southwest winds 10-20 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
.THANKSGIVING DAY...Mostly cloudy with chance of snow. Chance of snow
50 percent. Lows 25-35. Highs 30-40.
$$
MTZ107-211100-
Flathead Reservation-
141 PM MST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog.
* Min Temperature.....25-35.
* Max Humidity........84-94 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming variable less than 5 mph
after midnight.
* Ridge Top............West 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. Patchy fog in the morning.
* Max Temperature.....45-50 valleys and 25-30 ridges.
* Min Humidity........64-74 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 1300, then 2
kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....25-35.
* Max Humidity........75-85 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 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...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....45-50 valleys and 30-35 ridges.
* Min Humidity........54-64 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.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 30-40. Highs 45-55. Min humidities 50-60 percent.
South winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with rain and snow likely. Chance of
precipitation 70 percent. Lows 30-40. Highs 35-45. Min humidities
50-60 percent. Southwest winds 10-20 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 25-35. Highs 35-45. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of snow. Chance of snow
40 percent. Lows 25-35. Highs 30-40.
.THANKSGIVING DAY...Mostly cloudy with chance of snow and rain. Chance
of precipitation 50 percent. Lows 25-35. Highs 35-45.
$$
MTZ109-211100-
Bitterroot-
141 PM MST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Patchy fog.
* Min Temperature.....25-35.
* Max Humidity........90-100 percent valleys and 84-94 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming variable less than 5 mph
after midnight.
* 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 61-71 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......1-2 kft agl until 1300, then 2 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....23-33 valleys and 30-35 ridges.
* Max Humidity........85-95 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 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...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-55 valleys and 40-45 ridges.
* Min Humidity........42-52 percent valleys and 49-59 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.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 30-40. Highs 45-55. Min humidities
40-50 percent. Southwest winds 5-10 mph.
.MONDAY...Colder. Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 25-35. Highs 30-40. Min humidities
40-50 percent. Southwest winds 10-20 mph.
.TUESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
.THANKSGIVING DAY...Mostly cloudy with chance of snow and rain. Chance
of precipitation 40 percent. Lows 25-35. Highs 35-45.
$$
MTZ110-111-211100-
Deerlodge/West Beaverhead-East Beaverhead-
141 PM MST Thu Nov 20 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....20-30.
* Max Humidity........89-99 percent valleys and 75-85 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............West 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........40-50 percent valleys and 46-56 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
1-2 kft agl.
* Transport Winds.....West 10 mph until 1500, then 15 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....20-30.
* Max Humidity........84-94 percent valleys and 70-80 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 5-15 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.
.SATURDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....50-55 valleys and 35-45 ridges.
* Min Humidity........31-41 percent valleys and 39-49 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.....Southwest 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 25-35. Highs 45-55. Min humidities
35-45 percent. Southwest winds 10-15 mph.
.MONDAY...Colder. Partly cloudy with chance of snow. Chance of snow
30 percent. Lows 25-35. Highs 35-45. Min humidities 30-40 percent.
Southwest winds 10-20 mph.
.TUESDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 15-25. Highs 30-40. West winds 10-20 mph.
.WEDNESDAY...Mostly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 15-25. Highs 30-40.
.THANKSGIVING DAY...Mostly cloudy with chance of snow. Chance of snow
30 percent. Lows 20-30. Highs 30-40.
$$