Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
805
FNUS55 KMSO 091031
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
331 AM MST Tue Dec 9 2025
.DISCUSSION...
Idaho (Zones 102 and 103): Significant Atmospheric River,
potentially historic, to bring heavy rain, leading to hydrological
concerns and flood risk. Taking a quick look at the next 36 hours...
Today`s weather, rain likely and a slight chance of snow in the day,
then areas of rain and snow in the afternoon. Snow may be heavy at
times in the day. Snow level 5500 feet. Tonight`s weather, rain
likely and a chance of snow until midnight, then rain and snow likely
after midnight. Snow may be heavy at times after midnight. Snow level
5500 feet. Wednesday, rain likely.
Northwest MT (Zones 104 and 105): Significant Atmospheric River,
potentially historic, to bring heavy rain, leading to hydrological
concerns and flood risk. Taking a quick look at the next 36 hours...
Today`s weather, mostly cloudy. Areas of rain and a slight chance of
snow in the day. Precipitation may be heavy at times in the day.
Tonight`s weather, slight chance of snow until midnight, then snow
likely after midnight. Snow may be heavy at times after midnight.
Wednesday, rain likely. Snow likely. Snow may be heavy at times in
the day.
West Central MT (Zones 106, 107 and 108): Significant Atmospheric
River, potentially historic, to bring heavy rain, leading to
hydrological concerns and flood risk. Taking a quick look at the next
36 hours... Today`s weather, rain likely and a slight chance of snow
in the day, then slight chance of snow in the afternoon. Snow may be
heavy at times in the day. Tonight`s weather, slight chance of
snow until midnight, then rain and snow likely after midnight. Patchy
dense fog after midnight. Snow may be heavy at times after midnight.
Wednesday, rain likely. Snow likely in the day.
Southwest MT (Zones 109, 110 and 111): Significant Atmospheric
River, potentially historic, to bring heavy rain, leading to
hydrological concerns and flood risk. Taking a quick look at the next
36 hours... Today`s weather, areas of rain. Snow likely in the day,
then areas of snow in the afternoon. Tonight`s weather, a chance
of snow until midnight, then snow with rain likely after midnight.
Snow level 5500 feet. Wednesday, rain likely. Snow likely in the
day, then slight chance of snow in the afternoon. Snow may be heavy
at times in the afternoon.
IDZ102-103-092300-
Palouse/Hells Canyon-Clearwater/Nez Perce-
231 AM PST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Rain and chance of snow. Snow
level 5500 feet.
* Max Temperature.....45-55 valleys and 35-40 ridges.
* Min Humidity........77-87 percent valleys and 87-97 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............West 15-25 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 25 mph until 1100, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.TONIGHT...
* Sky/Weather.........Rain and snow. Snow level 5500 feet.
* Min Temperature.....35-45 valleys and 25-35 ridges.
* Max Humidity........88-98 percent valleys and 96-100 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......South 5-10 mph.
* Ridge Top............Southwest 5-15 mph increasing to 15-25 mph
after midnight.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....South 10 mph until 0200, then southwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.WEDNESDAY...
* Sky/Weather.........Rain.
* Max Temperature.....48-58 valleys and 40-50 ridges.
* Min Humidity........73-83 percent valleys and 80-90 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 20 mph until 1300, then 25 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...70 percent in the Palouse/Hells Canyon...and
100 percent in the Clearwater/Nez Perce.
.THURSDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 40-50. Highs 45-55. Min humidities
70-80 percent. Southwest winds 10-20 mph.
.FRIDAY...Mostly cloudy with chance of rain. Chance of rain 50 percent.
Lows 40-50. Highs 45-55. Min humidities 60-70 percent. Southwest winds
10-15 mph.
.SATURDAY...Mostly cloudy with slight chance of rain and snow. Chance
of precipitation 20 percent. Lows 35-45. Highs 45-55. Southwest winds
10-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 40-50.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 45-55.
$$
MTZ104-105-092300-
Kootenai-Flathead/Glacier Park-
331 AM MST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Chance of rain and slight
chance of snow. Snow level 4000 feet.
* Max Temperature.....45-50 valleys and 30-40 ridges.
* Min Humidity........64-74 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-15 mph.
* Ridge Top............West 35-45 mph decreasing to 25-35 mph in
the afternoon.
* Mixing Height.......1-2 kft agl until 1100, then 3 kft agl until
1600, then 2 kft agl.
* Transport Winds.....West 30 mph until 1500, then 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...20 percent in the Kootenai...and 60 percent
in the Flathead/Glacier Park.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Snow.
* Min Temperature.....20-30.
* Max Humidity........95-100 percent valleys and 84-94 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............Southwest 5-15 mph increasing to 15-25 mph
after midnight.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph until 2400, then south 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...90 percent.
.WEDNESDAY...
* Sky/Weather.........Rain and snow. Snow level 6000 feet.
* Max Temperature.....45-50 valleys and 35-40 ridges.
* Min Humidity........77-87 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 15-25 mph.
* Ridge Top............Southwest 15-25 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 20 mph until 1100, then west 25
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.THURSDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 35-45. Highs 40-50. Min humidities
70-80 percent. Southwest winds 15-25 mph.
.FRIDAY...Mostly cloudy with snow and rain likely. Chance of
precipitation 70 percent. Lows 25-35. Highs 35-45. Min humidities
75-85 percent. West winds 10-15 mph.
.SATURDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 30 percent. Lows 25-35. Highs 35-45. Southwest winds
10-20 mph.
.SUNDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 35-45.
.MONDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 40 percent. Lows 30-40. Highs 40-50.
$$
MTZ106-108-092300-
West Lolo-East Lolo-
331 AM MST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Rain and slight chance of
snow. Snow level 5000 feet.
* Max Temperature.....35-45.
* Min Humidity........62-72 percent valleys and 70-80 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-20 mph.
* Ridge Top............West 35-45 mph decreasing to 25-35 mph in
the afternoon.
* Mixing Height.......1-2 kft agl until 1100, then 3 kft agl until
1600, then 1-2 kft agl.
* Transport Winds.....West 25 mph until 1600, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent.
.TONIGHT...
* Sky/Weather.........Snow. Rain after midnight. Patchy dense fog
after midnight. Snow level 4000 feet.
* Min Temperature.....25-35.
* Max Humidity........87-97 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph becoming east 5-10
mph after midnight.
* Ridge Top............Southwest 5-15 mph increasing to 15-25 mph
after midnight.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 10 mph until 2300, then south 10
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...90 percent.
.WEDNESDAY...
* Sky/Weather.........Snow in the morning. Rain. Snow level 7500
feet.
* Max Temperature.....40-45.
* Min Humidity........77-87 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 15-25 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 20 mph until 1100, then west 25
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.THURSDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 40-50. Highs 40-50. Min humidities
75-85 percent. Southwest winds 15-25 mph.
.FRIDAY...Cloudy with rain likely and slight chance of snow. Chance of
precipitation 70 percent. Lows 35-45. Highs 40-50. Min humidities
70-80 percent. West winds 10-15 mph.
.SATURDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 40 percent. Lows 35-45. Highs 40-50. Southwest winds
10-20 mph.
.SUNDAY...Mostly cloudy with chance of snow and rain. Chance of
precipitation 50 percent. Lows 30-40. Highs 40-50.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 30-40. Highs 40-50.
$$
MTZ107-092300-
Flathead Reservation-
331 AM MST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain. Snow level
4500 feet.
* Max Temperature.....45-50 valleys and 30-35 ridges.
* Min Humidity........55-65 percent valleys and 74-84 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 20-30 mph.
* Ridge Top............West 35-45 mph decreasing to 25-35 mph in
the afternoon.
* Mixing Height.......1-2 kft agl until 1200, then 2 kft agl until
1600, then 1-2 kft agl.
* Transport Winds.....West 25 mph until 1500, then southwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...40 percent in areas west of Highway 93...and
70 percent in the Mission Mtns and areas east of Highway 93.
.TONIGHT...
* Sky/Weather.........Snow and rain. Snow level 3500 feet.
* Min Temperature.....30-35 valleys and 20-25 ridges.
* Max Humidity........88-98 percent.
* 20-Foot Winds.......
* Lower Elevation......South 5-15 mph.
* Ridge Top............South 10-20 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....South 10 mph until 0100, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...90 percent.
.WEDNESDAY...
* Sky/Weather.........Slight chance of snow in the morning. Rain.
Snow level 7000 feet.
* Max Temperature.....50-55 valleys and 35-40 ridges.
* Min Humidity........81-91 percent valleys and 94 percent ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............Southwest 15-25 mph.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....Southwest 15 mph until 1100, then 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.THURSDAY...Cloudy with rain and slight chance of snow. Chance of
precipitation 90 percent. Lows 40-50. Highs 45-55. Min humidities
75-85 percent. Southwest winds 10-20 mph.
.FRIDAY...Cloudy with rain likely and slight chance of snow. Chance of
precipitation 70 percent. Lows 35-45. Highs 45-55. Min humidities
65-75 percent. Southwest winds 10-15 mph.
.SATURDAY...Mostly cloudy with chance of rain and slight chance of
snow. Chance of precipitation 40 percent. Lows 35-45. Highs 40-50.
Southwest winds 5-15 mph.
.SUNDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 50 percent. Lows 35-45. Highs 40-50.
.MONDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 45-55.
$$
MTZ109-092300-
Bitterroot-
331 AM MST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Rain and snow. Snow level 6000 feet.
* Max Temperature.....45-50 valleys and 35-40 ridges.
* Min Humidity........64-74 percent valleys and 77-87 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 25-35 mph.
* Ridge Top............West 35-45 mph decreasing to 25-35 mph in
the afternoon.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 25 mph until 1500, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.TONIGHT...
* Sky/Weather.........Snow and rain. Snow level 5000 feet.
* Min Temperature.....25-35.
* Max Humidity........85-95 percent.
* 20-Foot Winds.......
* Lower Elevation......South 5-15 mph.
* Ridge Top............Southwest 5-15 mph increasing to 20-30 mph
after midnight.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.WEDNESDAY...
* Sky/Weather.........Slight chance of snow in the morning. Rain.
* Max Temperature.....50-55 valleys and 35-45 ridges.
* Min Humidity........72-82 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 20-30 mph.
* Ridge Top............Southwest 20-30 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....Southwest 20 mph until 1200, then west 25
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...100 percent.
.THURSDAY...Mostly cloudy with rain likely and slight chance of snow.
Chance of precipitation 70 percent. Lows 35-45. Highs 40-50. Min
humidities 70-80 percent. Southwest winds 20-30 mph.
.FRIDAY...Mostly cloudy with chance of rain and slight chance of snow.
Chance of precipitation 50 percent. Lows 35-45. Highs 40-50. Min
humidities 55-65 percent. Southwest winds 10-20 mph.
.SATURDAY...Mostly cloudy with slight chance of rain and snow. Chance
of precipitation 20 percent. Lows 30-40. Highs 40-50. Southwest winds
10-20 mph.
.SUNDAY...Partly cloudy with chance of snow and rain. Chance of
precipitation 30 percent. Lows 30-40. Highs 40-50.
.MONDAY...Mostly cloudy with chance of snow and slight chance of rain.
Chance of precipitation 30 percent. Lows 30-40. Highs 40-50.
$$
MTZ110-111-092300-
Deerlodge/West Beaverhead-East Beaverhead-
331 AM MST Tue Dec 9 2025
.TODAY...
* Sky/Weather.........Mostly cloudy. Chance of rain and snow. Snow
level 6500 feet.
* Max Temperature.....45-55 valleys and 35-40 ridges.
* Min Humidity........52-62 percent valleys and 67-77 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 25-35 mph.
* Ridge Top............West 30-40 mph decreasing to 20-30 mph in
the afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000, then 3
kft agl until 1600, then 2 kft agl.
* Transport Winds.....West 30 mph until 1600, then 20 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...80 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Snow. Rain likely after
midnight. Snow level 5500 feet.
* Min Temperature.....25-35.
* Max Humidity........87-97 percent valleys and 81-91 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-20 mph.
* Ridge Top............West 5-15 mph increasing to southwest 15-25
mph after midnight.
* Mixing Height.......Below 500 ft to 1 kft agl.
* Transport Winds.....West 15 mph until 2300, then southwest 15
mph.
* Chance Lightning....0 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...80 percent in the Deerlodge/West
Beaverhead...and 30 percent in the East Beaverhead.
.WEDNESDAY...
* Sky/Weather.........Mostly cloudy. Snow and chance of rain.
* Max Temperature.....45-55 valleys and 35-40 ridges.
* Min Humidity........62-72 percent valleys and 68-78 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 20-30 mph.
* Ridge Top............Southwest 20-30 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 1200, then 2
kft agl.
* Transport Winds.....West 20 mph until 1000, then 30 mph.
* Chance Lightning....0 percent in the Deerlodge/West
Beaverhead...and near 0 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...70 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.THURSDAY...Mostly cloudy with chance of rain and slight chance of
snow. Chance of precipitation 30 percent. Lows 35-45. Highs 45-55. Min
humidities 50-60 percent. Southwest winds 20-30 mph.
.FRIDAY...Mostly cloudy with chance of rain and snow. Chance of
precipitation 30 percent. Lows 35-45. Highs 40-50. Min humidities
45-55 percent. Southwest winds 10-20 mph.
.SATURDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 30-40. Highs 40-50. Southwest winds 10-20 mph.
.SUNDAY...Partly cloudy with slight chance of snow. Chance of snow
20 percent. Lows 30-40. Highs 40-50.
.MONDAY...Partly cloudy. Lows 25-35. Highs 40-50.
$$