Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
526
FNUS55 KMSO 030808
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
208 AM MDT Sun Aug 3 2025
.DISCUSSION...
Idaho (Zones 102, 103): Some dry air in the region will help humidities
get into the teens in the low elevations again today. Then some moisture
and a shortwave approaching the region tonight will cause some showers
and thunderstorms lasting through the night and into Monday morning.
Overall, the pattern remains active with frequent thunderstorms for the
next week.
Northwest MT (Zones 104, 105): Expect another round of thunderstorms in
the region this evening. Conditions on Monday will trend more humid,
again with another round of thunderstorms. Overall, the pattern remains
active with frequent thunderstorms for the next week.
West Central MT (Zones 106, 107, 108): Some dry air in the region will
help the humidity get down around the 20 percent mark today. Increasing
moisture this evening could initiate a few isolated thunderstorms, but
more humid and stormy conditions are expected tomorrow.
Southwest MT (Zones 109, 110, 111): Some dry air in the region will help
humidities get into the teens in the low elevations again today.
Afternoon thunderstorms will continue for the next several days with a
moist air mass over the region.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-040815-
Palouse/Hells Canyon-Clearwater/Nez Perce-
108 AM PDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....88-98 valleys and 70-80 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-10 mph becoming northwest in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000. 10 kft agl after
1400.
* Transport Winds.....Variable less than 10 mph until 1000, then
west 10 mph.
* Chance Lightning....15 percent in the Palouse/Hells Canyon...and
20 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers.
* Min Temperature.....50-60 valleys and 43-53 ridges.
* Max Humidity........54-64 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............Northwest 5-10 mph becoming southeast after
midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....West 10 mph until 2200, then variable less
than 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers. Chance
of thunderstorms in the afternoon.
* Max Temperature.....80-90 valleys and 65-70 ridges.
* Min Humidity........33-43 percent valleys and 42-52 percent
ridges.
* 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. 6 kft agl after 1200.
* Transport Winds.....West 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...20 percent.
.TUESDAY...Partly cloudy with chance of rain showers. Chance of showers
30 percent. Lows 50-60. Highs 75-85. Min humidities 15-25 percent.
Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 75-85. Min humidities
20-30 percent. West 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. West 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. Lows 50-60. Highs 75-85.
$$
MTZ104-105-040815-
Kootenai-Flathead/Glacier Park-
208 AM MDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........21-31 percent valleys and 34-44 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph.
* Ridge Top............West 10-15 mph.
* Mixing Height.......3 kft agl until 1000. 10 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 20
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....50-60.
* Max Humidity........72-82 percent valleys and 56-66 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Downslope/downvalley 1-3 mph.
* Ridge Top............West 5-15 mph becoming south 5-10 mph after
midnight.
* Mixing Height.......8 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph until 0100, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........28-38 percent valleys and 38-48 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......1-2 kft agl until 1000. 6 kft agl after 1200.
* Transport Winds.....Southwest 10 mph until 1500, then west 10
mph.
* Chance Lightning....20 percent in the Kootenai...and 30 percent
in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...10 percent.
.TUESDAY...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 20-30 percent. Southwest winds 10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 70-80. Min humidities
25-35 percent. Southwest winds 10-15 mph.
.THURSDAY...Cooler. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
60-70. Southwest winds 10-15 mph.
.FRIDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
60-70.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
65-75.
$$
MTZ106-108-040815-
West Lolo-East Lolo-
208 AM MDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-90 valleys and 73-83 ridges.
* Min Humidity........12-22 percent valleys and 18-28 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. 11 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....50-60.
* Max Humidity........56-66 percent valleys and 50-60 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....West 10 mph until 0100, then variable less
than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Slight chance of thunderstorms in the afternoon.
* Max Temperature.....68-78.
* Min Humidity........25-35 percent valleys and 32-42 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, then 4 kft agl until
1200, then 6 kft agl until 1400, then 7 kft agl until 1700, then
5 kft agl.
* Transport Winds.....Southwest 10 mph until 1400, then west 15
mph.
* Chance Lightning....30 percent in the West Lolo...and 40 percent
in the East Lolo.
* CWR (> 0.10 Inch)...10 percent in the West Lolo...and 30 percent
in the East Lolo.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
75-85. Min humidities 15-25 percent. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85. Min humidities
15-25 percent. West winds 5-10 mph.
.THURSDAY...Cooler. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
65-75. West 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
65-75.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
70-80.
$$
MTZ107-040815-
Flathead Reservation-
208 AM MDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....90-95 valleys and 65-70 ridges.
* Min Humidity........13-23 percent valleys and 22-32 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......1-2 kft agl until 1000. 12 kft agl after
1600.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Areas of smoke after midnight.
* Min Temperature.....55-60.
* Max Humidity........49-59 percent.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-10 mph becoming southwest after
midnight.
* Mixing Height.......11 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....Northwest 10 mph until 2300. Variable less
than 10 mph after 0500.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Mostly cloudy. Areas of smoke in the morning.
Slight chance of thunderstorms in the afternoon.
* Max Temperature.....80-85 valleys and 60-65 ridges.
* Min Humidity........26-36 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............Southwest 5-10 mph becoming northwest in the
afternoon.
* Mixing Height.......1-2 kft agl until 1000, then 4 kft agl until
1200, then 6 kft agl until 1400, then 7 kft agl until 1700, then
5 kft agl.
* Transport Winds.....Variable less than 10 mph until 0900, then
west 10 mph.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...10 percent.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
75-85. Min humidities 15-25 percent. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. Southwest winds 10-15 mph.
.THURSDAY...Not as warm. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 percent. Lows 55-65. Highs
70-80. West winds 10-15 mph.
.FRIDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
65-75.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
70-80.
$$
MTZ109-040815-
Bitterroot-
208 AM MDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Areas of smoke in the morning.
Slight chance of thunderstorms in the afternoon.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........16-26 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 1000. 11 kft agl after 1500.
* Transport Winds.....Southwest 10 mph until 1200, then west 10
mph.
* Chance Lightning....20 percent in the Darby, Sula, and West Fork
Districts...and near 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........73-83 percent valleys and 56-66 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-10 mph becoming variable less
than 5 mph after midnight.
* Ridge Top............Northwest 5-10 mph becoming south after
midnight.
* Mixing Height.......9 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....Northwest 10 mph until 2200, then variable
less than 10 mph until 0200, then southwest 10 mph until 0400,
then southeast 10 mph.
* Chance Lightning....20 percent in the Darby, Sula, and West Fork
Districts...and near 0 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...0 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........30-40 percent valleys and 36-46 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South up to 5 mph becoming northwest 5-10
mph in the afternoon.
* Mixing Height.......2 kft agl until 1000, then 5 kft agl until
1200, then 7 kft agl until 1700, then 4 kft agl.
* Transport Winds.....Variable less than 10 mph until 1000, then
west 10 mph until 1500, then 15 mph.
* Chance Lightning....50 percent in the Darby, Sula, and West Fork
Districts...and 40 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...40 percent.
.TUESDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 70-80. Min humidities 15-25 percent.
Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85. Min humidities
15-25 percent. Southwest winds 5-10 mph.
.THURSDAY...Cooler. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
65-75. West 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
65-75.
.SATURDAY...Partly cloudy. Lows 45-55. Highs 65-75.
$$
MTZ110-111-040815-
Deerlodge/West Beaverhead-East Beaverhead-
208 AM MDT Sun Aug 3 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....75-85 valleys and 70-75 ridges.
* Min Humidity........11-21 percent valleys and 17-27 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......Below 500 ft to 1 kft agl until 0900. 12 kft
agl after 1500.
* Transport Winds.....West 10 mph.
* Chance Lightning....20 percent in the Deerlodge/West
Beaverhead...and 40 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Min Temperature.....38-48 valleys and 45-50 ridges.
* Max Humidity........77-87 percent valleys and 60-70 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northwest 5-10 mph becoming southeast after
midnight.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....West 10 mph until 2100, then northwest 10 mph
until 2200, then northeast 10 mph until 0100, then southeast 10
mph until 0300, then variable less than 10 mph.
* Chance Lightning....25 percent in the Deerlodge/West
Beaverhead...and 30 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.MONDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Max Temperature.....75-85 valleys and 70-75 ridges.
* Min Humidity........17-27 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming west 10-15 mph in the
afternoon.
* Ridge Top............South 5-10 mph becoming southwest 10-20 mph
in the afternoon.
* Mixing Height.......1-2 kft agl until 1000, then 3 kft agl until
1100, then 6 kft agl until 1200, then 8 kft agl until 1300, then
12 kft agl until 1700, then 10 kft agl.
* Transport Winds.....South 10 mph until 1200, then southwest 20
mph until 1700, then west 20 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 30 percent. Lows 45-55. Highs 70-80. Min
humidities 10-20 percent. West winds 10-20 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85. Min humidities
10-20 percent. Southwest winds 10-15 mph.
.THURSDAY...Mostly cloudy. Lows 50-60. Highs 75-85. West winds
10-20 mph.
.FRIDAY...Cooler. Partly cloudy with chance of rain showers and slight
chance of thunderstorms. Chance of precipitation 30 percent. Lows
45-55. Highs 65-75.
.SATURDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
65-75.
$$