Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
466
FNUS55 KMSO 092307 CCA
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
159 PM MDT Sat Aug 9 2025...corrected
.DISCUSSION...
Idaho (Zones 102 and 103): Warming and drying for the next couple of
days with the hottest and driest conditions expected Monday and Tuesday
especially for the majority of 102. Increased winds on Wednesday along
with low humidity readings will create a concerning fire weather
environment.
Northwest MT (Zones 104 and 105): A few light showers are expected
during the afternoon/evening hours especially around Glacier National
Park today and Sunday. Warming and drying for the next couple of days
with the hottest and driest days occurring Monday and Tuesday. A weak
disturbance will bring increased winds and low probability of storms on
Wednesday.
West Central MT (Zones 106, 107 and 108): Warming and drying for the
next couple of days with the hottest and driest conditions expected
Monday and Tuesday. Increased winds on Wednesday along with low humidity
readings will create a concerning fire weather environment.
Southwest MT (Zones 109, 110 and 111): Warming and drying for the
next couple of days with the hottest and driest conditions expected
Monday and Tuesday. A few storms are expected to develop Tuesday
afternoon, with storms capable of gusty erratic winds.
Increased winds on Wednesday along with low humidity readings will
create a concerning fire weather environment.
IDZ102-103-102000-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1259 PM PDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....48-58.
* Max Humidity........58-68 percent valleys and 52-62 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....Northwest 10 mph until 0100, then variable
less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....88-98 valleys and 70-80 ridges.
* Min Humidity........20-30 percent valleys and 28-38 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northwest 5-10 mph in the morning.
* Mixing Height.......1-2 kft agl until 1000. 9 kft agl after 1500.
* Transport Winds.....Variable less than 10 mph until 1000, then
northwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....53-63.
* Max Humidity........49-59 percent.
* 20-Foot Winds.......
* Lower Elevation......Downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-10 mph becoming south after
midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northwest 10 mph until 2400. Variable less
than 10 mph after 0500.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....95-105 valleys and 75-85 ridges.
* Min Humidity........16-26 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming northwest in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000. 11 kft agl after
1400.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent in the Palouse/Hells Canyon...and
near 0 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Lows 60-70. Highs 90-100. Min humidities
10-20 percent. South winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 60-70. Highs 85-95. Min humidities
15-25 percent. Southwest winds 10-15 mph.
.THURSDAY...Not as warm. Mostly clear. Lows 55-65. Highs 75-85. West
winds 10-15 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ104-105-102000-
Kootenai-Flathead/Glacier Park-
159 PM MDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....45-55.
* Max Humidity........84-94 percent valleys and 60-70 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.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....West 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....85-90 valleys and 65-75 ridges.
* Min Humidity........25-35 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-15 mph.
* Mixing Height.......2 kft agl until 1000. 8 kft agl after 1400.
* Transport Winds.....West 10 mph until 1700, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-60.
* Max Humidity........86-95 percent valleys and 64-74 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Downslope/downvalley 1-3 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....West 15 mph until 0300, then variable less
than 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....85-95 valleys and 70-80 ridges.
* Min Humidity........24-34 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-10 mph.
* Mixing Height.......2 kft agl until 1000. 10 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. South winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 75-85. Min humidities
15-25 percent. Southwest winds 10-20 mph.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 70-80. Southwest winds
10-20 mph.
.FRIDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 65-75.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80.
$$
MTZ106-108-102000-
West Lolo-East Lolo-
159 PM MDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....45-55.
* Max Humidity........60-70 percent valleys and 52-62 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......8 kft agl until 2000. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....West 15 mph until 2200, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-90 valleys and 73-83 ridges.
* Min Humidity........19-29 percent valleys and 26-36 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......2 kft agl until 1000. 9 kft agl after 1300.
* Transport Winds.....West 10 mph until 1100, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-60.
* Max Humidity........67-77 percent valleys and 58-68 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....West 15 mph until 0300, 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.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-95 valleys and 78-88 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............West 5-10 mph.
* Mixing Height.......1-2 kft agl until 1000. 10 kft agl after
1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities
10-20 percent. Southwest winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Southwest winds 10-15 mph.
.THURSDAY...Mostly clear. Lows 55-65. Highs 75-85. Southwest winds
10-15 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 70-80.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ107-102000-
Flathead Reservation-
159 PM MDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....50-60.
* Max Humidity........51-61 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....West 15 mph until 2400, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....85-90 valleys and 65-70 ridges.
* Min Humidity........21-31 percent valleys and 33-43 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000. 9 kft agl after 1600.
* Transport Winds.....Southwest 10 mph until 1100, then west 10
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....55-60.
* Max Humidity........71-81 percent valleys and 61-71 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2400.
* Transport Winds.....West 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........19-29 percent valleys and 29-39 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............South 5-10 mph becoming west in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000. 11 kft agl after
1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Lows 60-70. Highs 90-100. Min humidities
15-25 percent. Southwest winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 60-70. Highs 85-95. Min humidities
10-20 percent. Southwest winds 10-20 mph.
.THURSDAY...Not as warm. Mostly clear. Lows 55-65. Highs 75-85.
Southwest winds 10-20 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 55-65. Highs 75-85.
$$
MTZ109-102000-
Bitterroot-
159 PM MDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....45-55.
* Max Humidity........75-85 percent valleys and 53-63 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......7 kft agl until 2000. 1-2 kft agl after 2100.
* Transport Winds.....Northwest 10 mph until 0300, then variable
less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........26-36 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......2 kft agl until 1000. 9 kft agl after 1300.
* Transport Winds.....West 10 mph until 1400, then northwest 15
mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Mostly clear.
* Min Temperature.....50-60.
* Max Humidity........77-87 percent valleys and 57-67 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northwest 15 mph until 2300, then variable
less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........20-30 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-10 mph becoming northwest in the
afternoon.
* Mixing Height.......2 kft agl until 1000. 9 kft agl after 1300.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. Southwest winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Southwest winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 55-65. Highs 75-85. West winds
10-15 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 70-80.
.SATURDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ110-111-102000-
Deerlodge/West Beaverhead-East Beaverhead-
159 PM MDT Sat Aug 9 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....33-43 valleys and 40-50 ridges.
* Max Humidity........79-89 percent valleys and 60-70 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......North 10-15 mph in the evening becoming
downslope/downvalley 5-10 mph.
* Ridge Top............Northwest 5-15 mph.
* Mixing Height.......8 kft agl until 2000. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....Northwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-80 valleys and 65-70 ridges.
* Min Humidity........21-31 percent.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-15 mph.
* Ridge Top............Northwest 5-15 mph.
* Mixing Height.......3 kft agl until 1000. 9 kft agl after 1500.
* Transport Winds.....Northwest 10 mph until 1300, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....38-48 valleys and 45-50 ridges.
* Max Humidity........82-92 percent valleys and 60-70 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-15 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northwest 15 mph until 0200, then variable
less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....80-90 valleys and 70-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Northwest 5-10 mph.
* Mixing Height.......2 kft agl until 1000. 10 kft agl after 1400.
* Transport Winds.....Northwest 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TUESDAY...Mostly clear. Slight chance of showers. Lows 50-60. Highs
80-90. Min humidities 10-20 percent. West winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 50-60. Highs 80-90. Min humidities
15-25 percent. Southwest winds 10-20 mph.
.THURSDAY...Mostly clear. Lows 50-60. Highs 80-90. Southwest winds
10-20 mph.
.FRIDAY...Partly cloudy. Lows 45-55. Highs 75-85.
.SATURDAY...Partly cloudy. Lows 45-55. Highs 75-85.
$$