Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
404
FNUS55 KMSO 311941
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
141 PM MDT Thu Jul 31 2025
.DISCUSSION...
Idaho (Zones 102 and 103): Storm activity is expected to increase
through the afternoon and last well into the evening hours. Slow moving
thunderstorms will create localized heavy rain and increase the risk
for flash flooding and debris flows across recent burn scars this
afternoon/evening. Showers and isolated thunderstorms will linger
through the night becoming widespread showers and thunderstorms by
Friday afternoon.
Northwest MT (Zones 104 and 105): Storm activity will pick up during
the evening and last into the nighttime hours. Slow moving thunderstorms
will create localized heavy rain. Thunderstorm coverage is expected to
become more widespread during Friday afternoon. Many of these storms
have the potential to produce heavy rain with the risk of flash flooding
in flood prone area into the evening.
West Central MT (Zones 106, 107 and 108): Storm activity will pick up
by late afternoon and last into the nighttime hours. Slow moving
thunderstorms will create localized heavy rain and increase the risk for
flash flooding and debris flows across recent burn scars tonight. Other
threats will be frequent lightning and erratic, gusty outflow winds.
Afternoon storm activity will continue on Friday.
Southwest MT (Zones 109, 110 and 111): Easterly winds will persist
today, as will the continuing threat of afternoon and evening
thunderstorms. Storm activity will pick up by mid afternoon and last
into the evening hours. Slow moving thunderstorms will create localized
heavy rain and increase the risk for flash flooding and debris flows
across recent burn scars tonight. Other threats will be frequent
lightning and erratic, gusty outflow winds. Afternoon storm activity
will continue on Friday.
View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula
IDZ102-103-011945-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1241 PM PDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of thunderstorms in the
evening. Rain showers likely.
* Min Temperature.....55-65 valleys and 48-58 ridges.
* Max Humidity........66-76 percent.
* 20-Foot Winds.......
* Lower Elevation......Southeast 5-10 mph.
* Ridge Top............Southeast 5-10 mph becoming southwest after
midnight.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....North 10 mph until 1900, then southeast 10
mph until 0100, then south 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...40 percent.
.FRIDAY...
* Sky/Weather.........Mostly cloudy. Rain showers. Chance of
thunderstorms in the afternoon.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........37-47 percent valleys and 47-57 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 6 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1100, then
west 10 mph.
* Chance Lightning....40 percent in the Palouse/Hells Canyon...and
50 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...30 percent in the Palouse/Hells Canyon...and
50 percent in the Clearwater/Nez Perce.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Min Temperature.....55-60 valleys and 48-58 ridges.
* Max Humidity........70-80 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 2-5 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph until 2000. Variable less than 10
mph after 2100.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...30 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms.
* Max Temperature.....83-93 valleys and 68-78 ridges.
* Min Humidity........25-35 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............Southwest up to 5 mph becoming northwest
5-10 mph in the afternoon.
* Mixing Height.......2 kft agl until 1000. 11 kft agl after 1400.
* Transport Winds.....Variable less than 10 mph until 1100, then
west 10 mph.
* Chance Lightning....25 percent in the Palouse/Hells Canyon...and
40 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Southwest winds 5-10 mph.
.MONDAY...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. Min humidities 30-40 percent. Northwest 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
75-85. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 55-65. Highs 80-90.
$$
MTZ104-105-011945-
Kootenai-Flathead/Glacier Park-
141 PM MDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........90-100 percent valleys and 70-80 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 10-15 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......8 kft agl until 2000. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....East 10 mph.
* Chance Lightning....25 percent in the Kootenai...and 30 percent
in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...20 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Rain showers likely. Chance of
thunderstorms in the afternoon.
* Max Temperature.....85-90 valleys and 65-75 ridges.
* Min Humidity........35-45 percent valleys and 52-62 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southeast 5-10 mph becoming southwest up to
5 mph in the afternoon.
* Mixing Height.......2 kft agl until 1000. 6 kft agl after 1200.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...40 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........100 percent valleys and 89-99 percent ridges.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph in the evening
becoming downslope/downvalley 1-3 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...50 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Rain showers and chance of
thunderstorms.
* Max Temperature.....73-83 valleys and 55-65 ridges.
* Min Humidity........48-58 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 1100, then 5 kft agl.
* Transport Winds.....Southwest 10 mph until 1600, then west 15
mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...70 percent.
.SUNDAY...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. Southwest winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain showers. Chance of showers
30 percent. Lows 55-65. Highs 70-80. Min humidities 30-40 percent. West
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
65-75. Southwest winds 10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 70-80.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 70-80.
$$
MTZ106-108-011945-
West Lolo-East Lolo-
141 PM MDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and slight
chance of thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........78-88 percent valleys and 72-82 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............Southeast 5-10 mph.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....Southeast 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...50 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Rain showers likely. Chance of
thunderstorms in the afternoon.
* Max Temperature.....78-88 valleys and 68-78 ridges.
* Min Humidity........32-42 percent valleys and 42-52 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 7 kft agl until 1700, then 5 kft agl.
* Transport Winds.....Variable less than 10 mph until 0900, then
southwest 10 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...50 percent in the West Lolo...and 20 percent
in the East Lolo.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........77-87 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 2100, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...50 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Max Temperature.....75-85 valleys and 63-73 ridges.
* Min Humidity........38-48 percent.
* 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. 6 kft agl after 1200.
* Transport Winds.....West 10 mph until 1300, then 15 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...30 percent.
.SUNDAY...Partly cloudy. Lows 55-65. Highs 75-85. Min humidities
10-20 percent. West winds 5-10 mph.
.MONDAY...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 30-40 percent. West winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
70-80. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ107-011945-
Flathead Reservation-
141 PM MDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of thunderstorms in the
evening. Chance of rain showers.
* Min Temperature.....55-60.
* Max Humidity........82-92 percent valleys and 73-83 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph becoming variable less than 5
mph after midnight.
* Ridge Top............Southeast 5-15 mph.
* Mixing Height.......8 kft agl until 2000. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....East 15 mph until 2100, then southeast 15 mph
until 0200, then variable less than 10 mph.
* Chance Lightning....30 percent in areas west of Highway 93...and
40 percent in the Mission Mtns and areas east of Highway 93.
* CWR (> 0.10 Inch)...30 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Rain showers likely. Chance of
thunderstorms in the afternoon.
* Max Temperature.....85-90 valleys and 65-70 ridges.
* Min Humidity........36-46 percent valleys and 53-63 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 1500, then 7 kft agl until 1700, then
5 kft agl.
* Transport Winds.....Variable less than 10 mph until 1600, then
west 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...10 percent.
.FRIDAY NIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Min Temperature.....55-60.
* Max Humidity........80-90 percent.
* 20-Foot Winds.......
* Lower Elevation......Variable less than 5 mph.
* Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...60 percent.
.SATURDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Max Temperature.....75-80 valleys and 55-60 ridges.
* Min Humidity........44-54 percent valleys and 69-79 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............West 5-10 mph in the morning.
* Mixing Height.......3 kft agl until 1100. 5 kft agl after 1400.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...60 percent.
.SUNDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. Southwest winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain showers. Chance of showers
30 percent. Lows 55-65. Highs 75-85. Min humidities 25-35 percent.
Northwest winds 5-10 mph.
.TUESDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
75-85. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 55-65. Highs 75-85.
$$
MTZ109-011945-
Bitterroot-
141 PM MDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
of thunderstorms.
* Min Temperature.....50-55.
* Max Humidity........87-97 percent valleys and 69-79 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northwest 5-10 mph in the evening becoming
downslope/downvalley 2-5 mph.
* Ridge Top............Northeast 5-10 mph becoming south after
midnight.
* Mixing Height.......7 kft agl until 1900. 1-2 kft agl after 2000.
* Transport Winds.....South 10 mph until 1900, then northwest 10
mph until 2000, then east 10 mph until 2300, then southeast 10
mph until 2400, then variable less than 10 mph.
* Chance Lightning....30 percent in the Darby, Sula, and West Fork
Districts...and 40 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...10 percent in the Darby, Sula, and West Fork
Districts...and 40 percent in areas north of Hamilton.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Rain showers. Chance of
thunderstorms in the afternoon.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........33-43 percent valleys and 40-50 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 5 kft agl until
1200, then 7 kft agl until 1700, then 5 kft agl.
* Transport Winds.....Southwest 10 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)...70 percent in the Darby, Sula, and West Fork
Districts...and 50 percent in areas north of Hamilton.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........88-98 percent valleys and 79-89 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-10 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
kft agl.
* Transport Winds.....West 10 mph until 2200, then variable less
than 10 mph.
* Chance Lightning....30 percent in the Darby, Sula, and West Fork
Districts...and 40 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...30 percent in the Darby, Sula, and West Fork
Districts...and 50 percent in areas north of Hamilton.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers. Chance
of thunderstorms in the afternoon.
* Max Temperature.....80-85 valleys and 65-70 ridges.
* Min Humidity........29-39 percent valleys and 35-45 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.......3 kft agl until 1000. 8 kft agl after 1200.
* Transport Winds.....West 10 mph until 1400, then northwest 10
mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...0 percent.
.SUNDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities
15-25 percent. West winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
70-80. Min humidities 35-45 percent. North winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 50-60. Highs 70-80. West winds
5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ110-111-011945-
Deerlodge/West Beaverhead-East Beaverhead-
141 PM MDT Thu Jul 31 2025
.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........94-100 percent valleys and 77-87 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 10-20 mph becoming south 5-10 mph
after midnight.
* Ridge Top............Northeast 5-15 mph becoming south 5-10 mph
after midnight.
* Mixing Height.......10 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 15 mph until 0100, then variable
less than 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...10 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....75-85 valleys and 65-75 ridges.
* Min Humidity........27-37 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 10-15 mph.
* Ridge Top............Southwest 10-20 mph.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
1100, then 7 kft agl until 1200, then 9 kft agl until 1600, then
7 kft agl.
* Transport Winds.....Southwest 10 mph until 1400, then 15 mph.
* Chance Lightning....50 percent in the Deerlodge/West
Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...50 percent in the Deerlodge/West
Beaverhead...and 20 percent in the East Beaverhead.
.FRIDAY NIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
and thunderstorms.
* Min Temperature.....45-55.
* Max Humidity........98-100 percent valleys and 80-90 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......West 10-15 mph in the evening becoming
downslope/downvalley 5-10 mph.
* Ridge Top............West 5-15 mph.
* Mixing Height.......5 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....West 15 mph until 2200, then variable less
than 10 mph.
* Chance Lightning....40 percent in the Deerlodge/West
Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.SATURDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers. Slight
chance of thunderstorms in the afternoon.
* Max Temperature.....73-83 valleys and 65-75 ridges.
* Min Humidity........22-32 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming west 5-15 mph in the
afternoon.
* Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 1000. 12 kft agl after 1500.
* Transport Winds.....West 10 mph until 1300, then 15 mph.
* Chance Lightning....40 percent in the Deerlodge/West
Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.
.SUNDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
75-85. Min humidities 15-25 percent. West winds 10-15 mph.
.MONDAY...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 10-20 percent. Southeast winds 10-15 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 30 percent. Lows 45-55. Highs 70-80. West winds
10-20 mph.
.WEDNESDAY...Partly cloudy. Lows 45-55. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$