Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
060
FNUS55 KMSO 240812
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
212 AM MDT Sun Aug 24 2025
.DISCUSSION...
Idaho (Zones 102 and 103): Hot and dry through early next week, with
poor overnight recoveries continuing under high pressure. Heat
advisories remain in effect for low elevations with highs reaching above
100. Dense smoke and stable conditions will delay inversion breaks in
the Nez Perce-Clearwater NF. Light north-northwest winds this
afternoon, shift back to easterly this evening. Humidity will trend
higher late Monday into the middle of next week as monsoon moisture
arrives, with increasing chances for showers and thunderstorms capable
of producing wetting rains.
Northwest MT (Zones 104 and 105): Hot and dry through early next week.
Easterly winds will continue into early next week. Gusts will once
again increase to 20-40 mph this evening across ridgetops in the
Flathead NF. Thermal belts will strengthen each night into Tuesday.
Wetting rain chances and higher humidity arrive late Wednesday into
Thursday.
West Central MT (Zones 106, 107 and 108): Hot and dry through early next
week. A northerly wind shift is expected by mid-afternoon, before east
winds return this evening. Gusts will increase again this evening,
reaching 25-35 mph across midslopes and ridgetops, particularly in the
Lolo NF. Thermal belts will strengthen each night into Tuesday. Humidity
will gradually trend higher late Tuesday into the middle of next week
as monsoon moisture arrives, with increasing chances for showers and
thunderstorms capable of producing wetting rains.
Southwest MT (Zones 109, 110 and 111): Warm and dry through Monday.
Northeasterly winds will continue into Monday with gusts 15-25 mph in
the afternoon and evenings. Thermal belts continue each night into
Tuesday morning. Humidity will gradually trend higher late Monday into
the middle of next week as monsoon moisture arrives, with increasing
chances for showers and thunderstorms capable of producing wetting
rains.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-250815-
Palouse/Hells Canyon-Clearwater/Nez Perce-
112 AM PDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....95-105 valleys and 80-90 ridges.
* Min Humidity........10-19 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming north-northwest 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-10 mph becoming northwest 5-10
mph in the afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. 10 kft
agl after 1500 until 1600.
* Transport Winds.....Variable less than 10 mph until 1200, then
northwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke in the evening.
Haze.
* Min Temperature.....55-65.
* Max Humidity........30-40 percent.
* 20-Foot Winds.......
* Lower Elevation......North 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............North 5-10 mph becoming east after midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100 until 0400.
* Transport Winds.....North 10 mph until 2300, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Haze.
* Max Temperature.....95-105 valleys and 80-90 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............East 5-10 mph becoming north up to 5 mph in
the afternoon.
* Mixing Height.......Below 500 ft to 1 kft agl until 1000. 10 kft
agl after 1500 until 1600.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 65-75. Highs 85-95. Min humidities
15-25 percent. East winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with chance of thunderstorms and slight
chance of rain showers. Chance of precipitation 30 percent. Lows 60-70.
Highs 80-90. Min humidities 15-25 percent. Southeast winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 percent. Lows 60-70. Highs
75-85. South winds 5-10 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85.
.SATURDAY...Partly cloudy. Lows 55-65. Highs 75-85.
$$
MTZ104-105-250815-
Kootenai-Flathead/Glacier Park-
212 AM MDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 70-80 ridges.
* Min Humidity........9-19 percent valleys and 20-30 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 8 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent in the Kootenai...and near 0
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-60.
* Max Humidity........59-69 percent valleys and 43-53 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-10 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 10 mph until 0100, then east 10
mph.
* Chance Lightning....0 percent in the Kootenai...and near 0
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-100 valleys and 75-85 ridges.
* Min Humidity........12-17 percent valleys and 15-25 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Partly cloudy. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. East winds 10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. East winds 10-15 mph.
.THURSDAY...Not as warm. Mostly cloudy with slight chance of rain
showers and thunderstorms. Chance of precipitation 20 percent. Lows
55-65. Highs 70-80. South winds 5-10 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 70-80.
$$
MTZ106-108-250815-
West Lolo-East Lolo-
212 AM MDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Haze.
* Max Temperature.....85-95 valleys and 78-88 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
* Lower Elevation......East 3-5 mph becoming north 5-10 mph in the
afternoon.
* Ridge Top............Southeast 10-15 mph becoming north 5-10 mph
in the afternoon.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1500.
* Transport Winds.....East 10 mph until 1300, then variable less
than 10 mph.
* Chance Lightning....0 percent in the West Lolo...and near 0
percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....50-60.
* Max Humidity........48-58 percent valleys and 42-52 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 10 mph until 2300, then east 10
mph.
* Chance Lightning....0 percent in the West Lolo...and near 0
percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....90-100 valleys and 78-88 ridges.
* Min Humidity........11-21 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............East 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....0 percent in the West Lolo...and near 0
percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Partly cloudy. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. East winds 5-10 mph.
.WEDNESDAY...Not as warm. Mostly cloudy with slight chance of rain
showers. Chance of showers 20 percent. Lows 60-70. Highs 75-85. Min
humidities 20-30 percent. East winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
70-80. South winds 5-10 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ107-250815-
Flathead Reservation-
212 AM MDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........11-21 percent valleys and 19-29 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-15 mph becoming northwest 5-10
mph in the afternoon.
* Mixing Height.......2 kft agl until 1100. 8 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-60.
* Max Humidity........52-62 percent valleys and 45-55 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-10 mph.
* Ridge Top............Northeast 5-15 mph becoming southeast 10-20
mph after midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 10 mph until 2400, then east 10
mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....95-100 valleys and 70-75 ridges.
* Min Humidity........8-18 percent valleys and 15-25 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Partly cloudy. Lows 60-70. Highs 85-95. Min humidities
10-20 percent. Northeast winds 10-15 mph.
.WEDNESDAY...Mostly cloudy. Lows 60-70. Highs 85-95. Min humidities
15-25 percent. Northeast winds 10-15 mph.
.THURSDAY...Not as warm. Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Chance of precipitation 30 percent.
Lows 60-70. Highs 75-85. South winds 5-10 mph.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
80-90.
.SATURDAY...Partly cloudy. Lows 55-65. Highs 75-85.
$$
MTZ109-250815-
Bitterroot-
212 AM MDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Haze and areas of smoke.
* Max Temperature.....90-95 valleys and 75-85 ridges.
* Min Humidity........12-22 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable 3-6 mph becoming north 10-15 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming northwest 10-15 in
the afternoon.
* Mixing Height.......3 kft agl until 1100. 11 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1100, then
northwest 10 mph.
* Chance Lightning....Near 0 percent in the Darby, Sula, and West
Fork Districts...and 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke in the evening.
Haze.
* Min Temperature.....45-55 valleys and 55-60 ridges.
* Max Humidity........55-65 percent valleys and 42-52 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......North 5-10 mph becoming variable less than 5
mph after midnight.
* Ridge Top............North 5-10 mph becoming east after midnight.
* Mixing Height.......8 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....North 10 mph until 2300, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent in the Darby, Sula, and West
Fork Districts...and 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Haze.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............East 5-10 mph becoming northeast in the
afternoon.
* Mixing Height.......3 kft agl until 1100. 9 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 55-65. Highs 80-90. Min humidities
20-30 percent. East winds 5-10 mph.
.WEDNESDAY...Not as warm. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
70-80. Min humidities 45-55 percent. Southeast winds 5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 50 percent. Lows 55-65. Highs
65-75. Southwest winds 5-10 mph.
.FRIDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
70-80.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
70-80.
$$
MTZ110-111-250815-
Deerlodge/West Beaverhead-East Beaverhead-
212 AM MDT Sun Aug 24 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-85 valleys and 70-80 ridges.
* Min Humidity........11-21 percent.
* 20-Foot Winds.......
* Lower Elevation......northeast 5-15 mph.
* Ridge Top............North 5-15 mph.
* Mixing Height.......3 kft agl until 1100. 11 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1000, then
northwest 10 mph until 1400, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....38-48 valleys and 45-55 ridges.
* Max Humidity........63-73 percent valleys and 45-55 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-15 mph becoming east 5-10 mph
after midnight.
* Ridge Top............Northeast 5-15 mph.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 15 mph until 2200, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Haze.
* Max Temperature.....80-85 valleys and 70-80 ridges.
* Min Humidity........13-23 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northeast 5-10 mph.
* Mixing Height.......1-2 kft agl until 1000. 10 kft agl after
1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
75-85. Min humidities 20-30 percent. East winds 10-15 mph.
.WEDNESDAY...Cooler. Mostly cloudy with chance of rain showers and
slight chance of thunderstorms. Chance of precipitation 30 percent.
Lows 50-60. Highs 65-75. Min humidities 45-55 percent. Southeast winds
5-10 mph.
.THURSDAY...Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
65-75. Southwest winds 5-10 mph.
.FRIDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
70-80.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
70-80.
$$