Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
603
FNUS55 KMSO 050800
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
200 AM MDT Fri Sep 5 2025
.DISCUSSION...
Idaho (Zones 102, 103): Expect east winds to last through Saturday,
along with hot and dry conditions and chances for thunderstorms
tomorrow. A wetter, cooler pattern will become established early next
week featuring more widespread rain and afternoon thunderstorms.
Northwest MT (Zones 104, 105): East winds will decrease in strength and
last through tomorrow before the west winds return on Sunday. A wetter,
cooler pattern becomes established early next week featuring more
widespread rain and afternoon thunderstorms.
West Central MT (Zones 106, 107, 108): Easterly winds will last through
tomorrow before the west winds return on Sunday. Dry conditions, with
humidity into the lower teens, will be present on today and tomorrow. A
wetter, cooler pattern becomes established early next week featuring
more widespread rain and afternoon thunderstorms.
Southwest MT (Zones 109, 110, 111): Winds relax today as high pressure
builds through tomorrow, with chances for thunderstorms tomorrow and
Sunday afternoons. A wetter, cooler pattern becomes established early
next week featuring more widespread rain and continuing afternoon
thunderstorms.
IDZ102-103-060800-
Palouse/Hells Canyon-Clearwater/Nez Perce-
100 AM PDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Areas of smoke.
* Max Temperature.....90-100 valleys and 75-85 ridges.
* Min Humidity........16-26 percent valleys and 22-32 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-10 mph becoming northwest in the
afternoon.
* Mixing Height.......3 kft agl until 1200. 10 kft agl after 1600.
* Transport Winds.....East 10 mph until 1300, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....53-63.
* Max Humidity........51-61 percent valleys and 42-52 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Downslope/downvalley 2-5 mph.
* Ridge Top............Northeast 5-10 mph becoming southeast after
midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....90-100 valleys and 75-85 ridges.
* Min Humidity........17-27 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming southwest up to 5
mph in the afternoon.
* Mixing Height.......2 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.
.SUNDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 60-70. Highs
80-90. Min humidities 25-35 percent. South winds 5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
75-85. Min humidities 20-30 percent. South winds 5-10 mph.
.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
70-80. West winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 50 percent. Lows
50-60. Highs 65-75.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 50 percent. Lows 50-60. Highs
65-75.
$$
MTZ104-105-060800-
Kootenai-Flathead/Glacier Park-
200 AM MDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Patchy smoke.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........17-27 percent valleys and 29-39 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 10-15 mph becoming south up to 5
mph in the afternoon.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1400.
* Transport Winds.....East 10 mph until 1500, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Patchy smoke.
* Min Temperature.....45-55.
* Max Humidity........66-76 percent valleys and 44-54 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......6 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Mostly sunny. Patchy smoke.
* Max Temperature.....90-95 valleys and 70-80 ridges.
* Min Humidity........11-21 percent valleys and 20-30 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph.
* 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.
.SUNDAY...Partly cloudy. Lows 55-65. Highs 75-85. Min humidities
25-35 percent. South winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
70-80. Min humidities 25-35 percent. Southwest winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
70-80. West winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with rain showers likely and slight chance
of thunderstorms. Chance of precipitation 60 percent. Lows 50-60. Highs
65-75.
.THURSDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 50 percent. Lows 50-60. Highs
60-70.
$$
MTZ106-108-060800-
West Lolo-East Lolo-
200 AM MDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Patchy smoke.
* Max Temperature.....80-90 valleys and 73-83 ridges.
* Min Humidity........14-24 percent valleys and 20-30 percent
ridges.
* 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. 7 kft agl after 1600.
* Transport Winds.....East 10 mph until 1500, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Patchy smoke.
* Min Temperature.....45-55.
* Max Humidity........54-64 percent valleys and 39-49 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......6 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Mostly sunny. Patchy smoke.
* Max Temperature.....85-95 valleys and 78-88 ridges.
* Min Humidity........13-23 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast up to 5 mph.
* Mixing Height.......2 kft agl until 1100. 9 kft agl after 1600.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent in the West Lolo...and 0
percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 55-65. Highs 80-90. Min humidities 20-30 percent.
South winds 5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
75-85. Min humidities 15-25 percent. Southwest winds 5-10 mph.
.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
70-80. Variable winds up to 10 mph.
.WEDNESDAY...Mostly cloudy with rain showers likely and slight chance
of thunderstorms. Chance of precipitation 60 percent. Lows 50-60. Highs
65-75.
.THURSDAY...Mostly cloudy with chance of rain. Chance of rain
50 percent. Lows 50-60. Highs 65-75.
$$
MTZ107-060800-
Flathead Reservation-
200 AM MDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Patchy smoke.
* Max Temperature.....80-85 valleys and 60-65 ridges.
* Min Humidity........21-31 percent valleys and 29-39 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. 6 kft agl after 1400.
* Transport Winds.....East 10 mph until 1600, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Patchy smoke.
* Min Temperature.....50-60.
* Max Humidity........59-69 percent valleys and 44-54 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-10 mph.
* Ridge Top............Northeast 5-15 mph becoming southeast after
midnight.
* Mixing Height.......5 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Patchy smoke.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........14-24 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-15 mph becoming southwest up to
5 mph in the afternoon.
* Mixing Height.......2 kft agl until 1100. 7 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy. Lows 60-70. Highs 80-90. Min humidities
25-35 percent. South winds 5-10 mph.
.MONDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
80-90. Min humidities 25-35 percent. Southwest winds 5-10 mph.
.TUESDAY...Not as warm. Partly cloudy with chance of rain showers and
slight chance of thunderstorms. Chance of precipitation 30 percent.
Lows 55-65. Highs 70-80. West winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with rain showers likely and slight chance
of thunderstorms. Chance of precipitation 60 percent. Lows 55-65. Highs
70-80.
.THURSDAY...Mostly cloudy with rain showers likely and slight chance of
thunderstorms. Chance of precipitation 60 percent. Lows 50-60. Highs
65-75.
$$
MTZ109-060800-
Bitterroot-
200 AM MDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Areas of smoke.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........21-31 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southeast 5-10 mph becoming north in the
afternoon.
* Mixing Height.......3 kft agl until 1200. 8 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Areas of smoke.
* Min Temperature.....50-55.
* Max Humidity........62-72 percent valleys and 45-55 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......North 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northeast 5-10 mph becoming southeast after
midnight.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2100.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Areas of smoke.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........18-28 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming southwest up to 5
mph in the afternoon.
* Mixing Height.......3 kft agl until 1100, then 4 kft agl until
1200, then 6 kft agl until 1300, then 9 kft agl until 1500, then
10 kft agl until 1700, then 8 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 55-65. Highs
75-85. Min humidities 25-35 percent. Southwest winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain. Chance of rain 30 percent.
Lows 50-60. Highs 75-85. Min humidities 20-30 percent. Southwest winds
5-10 mph.
.TUESDAY...Cooler. Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 30 percent. Lows
50-60. Highs 65-75. Southwest winds 5-10 mph.
.WEDNESDAY...Mostly cloudy with rain showers likely and slight chance
of thunderstorms. Chance of precipitation 60 percent. Lows 50-60. Highs
65-75.
.THURSDAY...Mostly cloudy with rain showers likely and slight chance of
thunderstorms. Chance of precipitation 60 percent. Lows 45-55. Highs
60-70.
$$
MTZ110-111-060800-
Deerlodge/West Beaverhead-East Beaverhead-
200 AM MDT Fri Sep 5 2025
.TODAY...
* Sky/Weather.........Mostly sunny. Haze and areas of smoke.
* Max Temperature.....75-80 valleys and 60-70 ridges.
* Min Humidity........19-29 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............North 5-10 mph.
* Mixing Height.......2 kft agl until 1100. 8 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1300, then
north 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Mostly clear. Haze and areas of smoke.
* Min Temperature.....30-40 valleys and 40-50 ridges.
* Max Humidity........61-71 percent valleys and 42-52 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northeast 5-10 mph becoming southeast after
midnight.
* Mixing Height.......7 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 10 mph until 2200. Variable less
than 10 mph after 0300.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Haze and areas of smoke.
* Max Temperature.....80-85 valleys and 70-75 ridges.
* Min Humidity........14-24 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 1100. 10 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 30 percent. Lows 50-60. Highs 75-85. Min
humidities 25-35 percent. Southwest winds 10-15 mph.
.MONDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
70-80. Min humidities 15-25 percent. Southwest winds 10-15 mph.
.TUESDAY...Mostly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 30 percent. Lows 45-55. Highs 65-75. South
winds 10-15 mph.
.WEDNESDAY...Mostly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 30 percent. Lows
45-55. Highs 65-75.
.THURSDAY...Mostly cloudy with chance of rain showers. Chance of
showers 30 percent. Lows 45-55. Highs 60-70.
$$