Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
152
FNUS55 KMSO 202101
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
201 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. Taking 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.
Friday 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. Taking 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. Taking 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.
It`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. Taking 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-
101 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-
201 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-
201 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-
201 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-
201 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-
201 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.
$$