Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
786
FNUS55 KMSO 040851
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
151 AM MST Thu Dec 4 2025
.DISCUSSION...
Idaho (Zones 102 and 103): A prolonged period of winter weather
starts on Thursday lasting through the weekend - Heavy mountain
snow, along with a wintry mix in the valleys will make for
difficult travel conditions. Taking a quick look at the next
36 hours... Today`s weather, areas of snow and a chance of light
freezing rain in the day, then rain and snow likely in the afternoon.
Patchy dense fog in the afternoon. Snow level 3000 feet. Tonight`s
weather, snow, rain likely and a slight chance of freezing rain.
Patchy dense fog after midnight. Snow level 4500 feet. Friday, rain,
snow likely and a slight chance of freezing rain in the day, then
rain, snow and freezing rain likely in the afternoon. Patchy dense
fog in the day. It`ll be not as cool. Snow may be heavy at times in
the afternoon. Snow level 5000 feet.
Northwest MT (Zones 104 and 105): A prolonged period of winter
weather starts on Thursday lasting through the weekend - Heavy
mountain snow, along with a wintry mix in the valleys will make
for difficult travel conditions. Taking a quick look at the next
36 hours... Today`s weather, snow likely in the day, then areas of
snow in the afternoon. Patchy dense fog and blowing snow in the day.
Visibility one quarter mile or less at times in the day. Tonight`s
weather, mostly cloudy with a chance of snow. Chance of light
freezing rain. Friday, snow likely and a slight chance of light
freezing rain in the day, then snow likely in the afternoon. Patchy
dense fog in the day.
West Central MT (Zones 106, 107 and 108): A prolonged period of
winter weather starts on Thursday lasting through the weekend -
Heavy mountain snow, along with a wintry mix in the valleys will
make for difficult travel conditions. Taking a quick look at the next
36 hours... Today`s weather, areas of snow in the day, then snow
with light freezing rain likely in the afternoon. Tonight`s
weather, snow likely. Slight chance of rain and freezing rain until
midnight, then slight chance of light freezing rain after midnight.
Snow level 3500 feet. Friday, snow, rain likely and a slight chance
of light freezing rain in the day, then rain and snow likely in the
afternoon. Patchy dense fog in the day. Snow level 3500 feet.
Southwest MT (Zones 109, 110 and 111): A prolonged period of winter
weather starts on Thursday lasting through the weekend - Heavy
mountain snow, along with a wintry mix in the valleys will make
for difficult travel conditions. Taking a quick look at the next
36 hours... Today`s weather, mostly cloudy. Slight chance of snow in
the day, then areas of snow in the afternoon. Snow may be heavy at
times in the day. Tonight`s weather, a chance of snow. Light
freezing rain likely until midnight, then slight chance of freezing
rain after midnight. Friday, a chance of snow and a slight chance of
freezing rain in the day, then snow likely in the afternoon.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-042300-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1251 AM PST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Chance of light freezing rain in the morning.
Snow. Rain in the afternoon. Patchy dense fog in the afternoon.
Snow level 3000 feet.
* Max Temperature.....35-45 valleys and 25-35 ridges.
* Min Humidity........77-87 percent valleys and 87-97 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 10-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent.
.TONIGHT...
* Sky/Weather.........Snow, rain and slight chance of freezing
rain. Patchy dense fog after midnight. Snow level 4500 feet.
* Min Temperature.....25-35.
* Max Humidity........84-94 percent.
* 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.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...90 percent.
.FRIDAY...
* Sky/Weather.........Patchy dense fog in the morning. Rain, snow
and freezing rain. Snow level 5000 feet.
* Max Temperature.....40-50 valleys and 30-40 ridges.
* Min Humidity........80-90 percent valleys and 86-96 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph until 1300, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.SATURDAY...Rain, snow and slight chance of freezing rain. Chance of
precipitation near 100 percent. Lows 35-45. Highs 35-45. Min humidities
70-80 percent. West winds 10-20 mph.
.SUNDAY...Cloudy with snow with rain likely. Chance of precipitation
90 percent. Lows 30-40. Highs 40-50. Min humidities 65-75 percent.
Southwest winds 10-15 mph.
.MONDAY...Mostly cloudy with rain and snow. Chance of precipitation
90 percent. Lows 35-45. Highs 40-50. Southwest winds 5-15 mph.
.TUESDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 35-45. Highs 40-50.
.WEDNESDAY...Cloudy with rain and snow. Chance of precipitation
90 percent. Lows 35-45. Highs 45-55.
$$
MTZ104-105-042300-
Kootenai-Flathead/Glacier Park-
151 AM MST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Patchy dense fog and blowing
snow in the morning. Snow likely.
* Max Temperature.....35-40 valleys and 20-30 ridges.
* Min Humidity........72-82 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 15-25 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 0
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...20 percent in the Kootenai...and 50 percent
in the Flathead/Glacier Park.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow and light
freezing rain.
* Min Temperature.....20-30.
* Max Humidity........97-100 percent valleys and 85-95 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 1-3 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...30 percent in the Kootenai...and 50 percent
in the Flathead/Glacier Park.
.FRIDAY...
* Sky/Weather.........Mostly cloudy. Patchy dense fog in the
morning. Slight chance of light freezing rain in the morning.
Snow.
* Max Temperature.....35-40 valleys and 25-30 ridges.
* Min Humidity........85-95 percent valleys and 79-89 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.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent.
.SATURDAY...Cloudy with snow, rain and slight chance of freezing rain.
Chance of precipitation 90 percent. Lows 25-35. Highs 30-40. Min
humidities 75-85 percent. Southwest winds 10-15 mph.
.SUNDAY...Mostly cloudy with snow, rain likely and light freezing rain.
Chance of precipitation 80 percent. Lows 30-40. Highs 35-45. Min
humidities 70-80 percent. Southwest winds 10-20 mph.
.MONDAY...Mostly cloudy with rain with snow likely. Chance of
precipitation 80 percent. Lows 30-40. Highs 35-45. Southwest winds
20-30 mph.
.TUESDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 30-40. Highs 40-50.
.WEDNESDAY...Mostly cloudy with snow and rain likely. Chance of
precipitation 70 percent. Lows 30-40. Highs 35-45.
$$
MTZ106-108-042300-
West Lolo-East Lolo-
151 AM MST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Snow.
* Max Temperature.....25-35.
* Min Humidity........77-87 percent valleys and 83-93 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....West 15 mph until 1200, then 20 mph.
* Chance Lightning....Near 0 percent in the West Lolo...and 0
percent in the East Lolo.
* CWR (> 0.10 Inch)...40 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Snow likely and slight chance
of freezing rain.
* Min Temperature.....20-30.
* Max Humidity........88-98 percent.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...50 percent.
.FRIDAY...
* Sky/Weather.........Patchy dense fog in the morning. Slight
chance of light freezing rain in the morning. Snow. Rain in the
afternoon. Snow level 4000 feet.
* Max Temperature.....30-40.
* Min Humidity........77-87 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent.
.SATURDAY...Cloudy with snow, rain and slight chance of freezing rain.
Chance of precipitation 90 percent. Lows 30-40. Highs 35-45. Min
humidities 70-80 percent. West winds 5-15 mph.
.SUNDAY...Mostly cloudy with snow and rain. Chance of precipitation
80 percent. Lows 30-40. Highs 35-45. Min humidities 70-80 percent.
Southwest winds 10-20 mph.
.MONDAY...Mostly cloudy with snow and rain likely. Chance of
precipitation 70 percent. Lows 30-40. Highs 35-45. Southwest winds
10-20 mph.
.TUESDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 30-40. Highs 40-50.
.WEDNESDAY...Mostly cloudy with snow and rain. Chance of precipitation
80 percent. Lows 30-40. Highs 40-50.
$$
MTZ107-042300-
Flathead Reservation-
151 AM MST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Snow. Light freezing rain
likely and slight chance of rain in the afternoon.
* Max Temperature.....35-40 valleys and 20-25 ridges.
* Min Humidity........79-89 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 10-15 mph in the morning.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...30 percent in areas west of Highway 93...and
80 percent in the Mission Mtns and areas east of Highway 93.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow, slight chance
of rain and freezing rain. Snow level 3500 feet.
* Min Temperature.....25-30.
* Max Humidity........88-98 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............West 5-15 mph in the evening.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...40 percent in areas west of Highway 93...and
80 percent in the Mission Mtns and areas east of Highway 93.
.FRIDAY...
* Sky/Weather.........Slight chance of light freezing rain in the
morning. Snow and rain. Snow level 3500 feet.
* Max Temperature.....35-40 valleys and 25-30 ridges.
* Min Humidity........81-91 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent.
.SATURDAY...Cloudy with snow, rain and slight chance of light freezing
rain. Chance of precipitation 90 percent. Lows 30-40. Highs 35-45. Min
humidities 70-80 percent. Southwest winds 5-15 mph.
.SUNDAY...Cloudy with snow with rain likely. Chance of precipitation
80 percent. Lows 30-40. Highs 40-50. Min humidities 65-75 percent.
Southwest winds 5-15 mph.
.MONDAY...Mostly cloudy with rain likely and slight chance of snow.
Chance of precipitation 60 percent. Lows 35-45. Highs 40-50. Southwest
winds 10-20 mph.
.TUESDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 35-45. Highs 40-50.
.WEDNESDAY...Mostly cloudy with rain likely and slight chance of snow.
Chance of precipitation 70 percent. Lows 30-40. Highs 40-50.
$$
MTZ109-042300-
Bitterroot-
151 AM MST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Snow.
* Max Temperature.....35-40 valleys and 25-30 ridges.
* Min Humidity........67-77 percent.
* 20-Foot Winds.......
* Lower Elevation......South 5-15 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...30 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Snow with freezing rain
likely.
* Min Temperature.....20-30.
* Max Humidity........84-94 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent in the Darby, Sula, and West Fork
Districts...and 60 percent in areas north of Hamilton.
.FRIDAY...
* Sky/Weather.........Slight chance of freezing rain in the
morning. Snow. Rain in the afternoon. Snow level 5000 feet.
* Max Temperature.....40-45 valleys and 30-35 ridges.
* Min Humidity........73-83 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...90 percent.
.SATURDAY...Snow, rain and slight chance of freezing rain. Chance of
precipitation near 100 percent. Lows 30-40. Highs 35-45. Min humidities
65-75 percent. West winds 15-25 mph.
.SUNDAY...Mostly cloudy with snow likely. Chance of snow 70 percent.
Lows 25-35. Highs 35-45. Min humidities 65-75 percent. Southwest winds
10-20 mph.
.MONDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 35-45. Southwest winds
15-25 mph.
.TUESDAY...Cloudy with rain and chance of snow. Chance of precipitation
90 percent. Lows 30-40. Highs 40-50.
.WEDNESDAY...Cloudy with snow with rain likely. Chance of precipitation
80 percent. Lows 30-40. Highs 40-50.
$$
MTZ110-111-042300-
Deerlodge/West Beaverhead-East Beaverhead-
151 AM MST Thu Dec 4 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....35-40 valleys and 20-30 ridges.
* Min Humidity........59-69 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 15 mph until 1200, then west 20
mph.
* Chance Lightning....0 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow.
* Min Temperature.....20-25.
* Max Humidity........89-99 percent valleys and 80-90 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.....West 15 mph.
* Chance Lightning....0 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.FRIDAY...
* Sky/Weather.........Mostly cloudy. Snow likely.
* Max Temperature.....35-40 valleys and 25-35 ridges.
* Min Humidity........68-78 percent valleys and 74-84 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.....West 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...50 percent in the Deerlodge/West
Beaverhead...and 20 percent in the East Beaverhead.
.SATURDAY...Mostly cloudy with chance of snow and slight chance of
light freezing rain. Chance of precipitation 50 percent. Lows 25-35.
Highs 30-40. Min humidities 60-70 percent. West winds 10-20 mph.
.SUNDAY...Mostly cloudy with chance of snow. Chance of snow 30 percent.
Lows 20-30. Highs 30-40. Min humidities 60-70 percent. Southwest winds
10-20 mph.
.MONDAY...Mostly cloudy with chance of snow. Chance of snow 30 percent.
Lows 25-35. Highs 35-45. Southwest winds 15-25 mph.
.TUESDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 40 percent. Lows 25-35. Highs 40-50.
.WEDNESDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 40-50.
$$