Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
760
FNUS55 KMSO 310825
FWFMSO
Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
225 AM MDT Thu Jul 31 2025
.DISCUSSION...
Idaho (Zones 102 and 103): 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 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. Other threats will be frequent lightning
and erratic, gusty outflow winds. Afternoon storm activity will continue
on Friday.
Northwest MT (Zones 104 and 105): Easterly winds will persist today, as
will the continuing threat of afternoon and evening thunderstorms. Wind
speeds will increase in the early evening. Storm activity will also
pick up by early evening 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.
West Central MT (Zones 106, 107 and 108): Easterly winds will persist
today, as will the continuing threat of afternoon and evening
thunderstorms. 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
IDZ102-103-010830-
Palouse/Hells Canyon-Clearwater/Nez Perce-
125 AM PDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....95-105 valleys and 78-88 ridges.
* Min Humidity........18-28 percent valleys and 26-36 percent
ridges.
* 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. 10 kft agl after 1600.
* Transport Winds.....East 10 mph until 1500, then north 10 mph.
* Chance Lightning....25 percent in the Palouse/Hells Canyon...and
30 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Rain showers likely and chance
of thunderstorms.
* Min Temperature.....53-63.
* Max Humidity........69-79 percent.
* 20-Foot Winds.......
* Lower Elevation......Southeast 5-10 mph.
* Ridge Top............Southeast 5-10 mph becoming south after
midnight.
* Mixing Height.......9 kft agl until 1900. Below 500 ft to 1 kft
agl after 2200.
* Transport Winds.....Southeast 15 mph until 0100, then variable
less than 10 mph.
* Chance Lightning....40 percent in the Palouse/Hells Canyon...and
30 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...40 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Rain showers likely. Chance of
thunderstorms in the afternoon.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........36-46 percent valleys and 46-56 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1200.
* Transport Winds.....Variable less than 10 mph until 1000, 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
60 percent in the Clearwater/Nez Perce.
.SATURDAY...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 15-25 percent. Southwest winds 5-10 mph.
.SUNDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
15-25 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. Northwest winds 5-10 mph.
.TUESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
75-85.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ104-105-010830-
Kootenai-Flathead/Glacier Park-
225 AM MDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....85-95 valleys and 70-80 ridges.
* Min Humidity........23-33 percent valleys and 37-47 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 1000. 9 kft agl after 1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 25
percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms in the evening, then slight chance
of rain after midnight.
* Min Temperature.....50-60.
* Max Humidity........90-100 percent valleys and 73-83 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......East 10-15 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....East 15 mph until 0300, then variable less
than 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........36-46 percent valleys and 57-67 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............East 5-10 mph becoming south up to 5 mph in
the afternoon.
* Mixing Height.......2 kft agl until 1000, then 5 kft agl until
1200, then 7 kft agl until 1400, then 8 kft agl until 1700, then
6 kft agl.
* Transport Winds.....Variable less than 10 mph until 1200, then
south 10 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...40 percent in the Kootenai...and 60 percent
in the Flathead/Glacier Park.
.SATURDAY...Cooler. Mostly cloudy with rain showers likely and chance
of thunderstorms. Chance of precipitation 60 percent. Lows 55-65. Highs
65-75. Min humidities 40-50 percent. Southwest winds 5-10 mph.
.SUNDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
70-80. Min humidities 25-35 percent. Southwest winds 10-15 mph.
.MONDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80. Southwest winds 10-15 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.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 70-80.
$$
MTZ106-108-010830-
West Lolo-East Lolo-
225 AM MDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....85-95 valleys and 78-88 ridges.
* Min Humidity........19-29 percent valleys and 27-37 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 1000. 8 kft agl after 1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....25 percent in the West Lolo...and 40 percent
in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
slight chance of thunderstorms. Chance of rain after midnight.
* Min Temperature.....50-60.
* Max Humidity........73-83 percent.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 5-10 mph.
* Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....East 15 mph until 2400, then southeast 10
mph.
* Chance Lightning....30 percent in the West Lolo...and 40 percent
in the East Lolo.
* CWR (> 0.10 Inch)...40 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning. Chance of thunderstorms in the afternoon.
* Max Temperature.....80-90 valleys and 70-80 ridges.
* Min Humidity........32-42 percent valleys and 41-51 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph becoming southwest up to 5
mph in the afternoon.
* Mixing Height.......2 kft agl until 1000, then 5 kft agl until
1200, then 7 kft agl until 1400, then 8 kft agl until 1700, then
6 kft agl.
* Transport Winds.....Variable less than 10 mph until 1000, then
southwest 10 mph.
* Chance Lightning....40 percent in the West Lolo...and 50 percent
in the East Lolo.
* CWR (> 0.10 Inch)...50 percent.
.SATURDAY...Not as warm. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 50 percent. Lows 55-65. Highs
70-80. Min humidities 25-35 percent. West winds 5-10 mph.
.SUNDAY...Partly cloudy. 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 30 percent. Lows 55-65. Highs
70-80. West 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.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ107-010830-
Flathead Reservation-
225 AM MDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
in the afternoon.
* Max Temperature.....90-95 valleys and 70-75 ridges.
* Min Humidity........21-31 percent valleys and 33-43 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............East 10-20 mph decreasing to 5-10 mph in the
afternoon.
* Mixing Height.......2 kft agl until 1000. 8 kft agl after 1500.
* Transport Winds.....East 10 mph.
* Chance Lightning....20 percent in areas west of Highway 93...and
25 percent in the Mission Mtns and areas east of Highway 93.
* CWR (> 0.10 Inch)...0 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms in the evening, then slight chance of rain after
midnight.
* Min Temperature.....55-60.
* Max Humidity........74-84 percent.
* 20-Foot Winds.......
* Lower Elevation......East 5-10 mph.
* Ridge Top............East 10-15 mph.
* Mixing Height.......7 kft agl until 2000. Below 500 ft to 1 kft
agl after 2100.
* Transport Winds.....East 10 mph until 2000, then southeast 15 mph
until 0100, then variable less than 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...30 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
morning, then rain showers likely and chance of thunderstorms in
the afternoon.
* Max Temperature.....85-90 valleys and 65-70 ridges.
* Min Humidity........37-47 percent valleys and 54-64 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............South 5-10 mph becoming west in the
afternoon.
* Mixing Height.......2 kft agl until 1000. 8 kft agl after 1400.
* Transport Winds.....South 10 mph until 1700, then southwest 10
mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...30 percent.
.SATURDAY...Mostly cloudy with rain showers likely and chance of
thunderstorms. Chance of precipitation 60 percent. Lows 60-70. Highs
75-85. Min humidities 30-40 percent. Southwest winds 5-10 mph.
.SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
15-25 percent. Southwest 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. West 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.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 75-85.
$$
MTZ109-010830-
Bitterroot-
225 AM MDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....90-95 valleys and 75-80 ridges.
* Min Humidity........25-35 percent.
* 20-Foot Winds.......
* Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
the afternoon.
* Ridge Top............East 5-10 mph.
* Mixing Height.......3 kft agl until 1100, then 5 kft agl until
1300, then 6 kft agl until 1400, then 8 kft agl until 1500, then
10 kft agl until 1700, then 7 kft agl.
* Transport Winds.....East 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...30 percent in the Darby, Sula, and West Fork
Districts...and 10 percent in areas north of Hamilton.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........87-97 percent valleys and 77-87 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Southeast 5-10 mph.
* Ridge Top............Southeast 5-10 mph.
* Mixing Height.......5 kft agl until 1900, then 1-2 kft agl.
* Transport Winds.....Southeast 15 mph until 1900, then southwest
10 mph until 2000, then southeast 10 mph until 2100, then south
10 mph until 2200, then southeast 10 mph until 0400, 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)...40 percent.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....85-90 valleys and 70-75 ridges.
* Min Humidity........31-41 percent valleys and 38-48 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Calm to variable less than 7 mph.
* Ridge Top............Southwest up to 5 mph becoming west 5-10 mph
in the afternoon.
* Mixing Height.......2 kft agl until 1000, then 3 kft agl until
1100, then 5 kft agl until 1200, then 8 kft agl until 1700, then
7 kft agl.
* Transport Winds.....Variable less than 10 mph until 1000, then
west 10 mph until 1200, then southwest 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)...60 percent.
.SATURDAY...Partly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
70-80. Min humidities 25-35 percent. West winds 5-10 mph.
.SUNDAY...Partly cloudy. Lows 50-60. Highs 70-80. Min humidities
20-30 percent. West winds 5-10 mph.
.MONDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 50-60. Highs 70-80. Northwest
winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 30 percent. Lows 50-60. Highs 70-80.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
$$
MTZ110-111-010830-
Deerlodge/West Beaverhead-East Beaverhead-
225 AM MDT Thu Jul 31 2025
.TODAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....80-85 valleys and 70-80 ridges.
* Min Humidity........20-30 percent.
* 20-Foot Winds.......
* Lower Elevation......East 5-15 mph.
* Ridge Top............East 5-15 mph.
* Mixing Height.......2 kft agl until 1000. Greater than 12 kft agl
after 1400.
* Transport Winds.....Southeast 10 mph until 1700, then east 15
mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...10 percent.
.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
thunderstorms.
* Min Temperature.....38-48 valleys and 45-50 ridges.
* Max Humidity........86-96 percent valleys and 63-73 percent
ridges.
* 20-Foot Winds.......
* Lower Elevation......Northeast 5-10 mph becoming southwest after
midnight.
* Ridge Top............Northeast 5-15 mph becoming southeast 5-10
mph after midnight.
* Mixing Height.......11 kft agl until 1900. Below 500 ft to 1 kft
agl after 2000.
* Transport Winds.....Northeast 15 mph until 2400, then variable
less than 10 mph.
* Chance Lightning....60 percent in the Deerlodge/West
Beaverhead...and 40 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...30 percent in the Deerlodge/West
Beaverhead...and 10 percent in the East Beaverhead.
.FRIDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
afternoon.
* Max Temperature.....80-85 valleys and 65-75 ridges.
* Min Humidity........26-36 percent.
* 20-Foot Winds.......
* Lower Elevation......Southwest 5-15 mph.
* Ridge Top............Southwest 5-15 mph.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
1100, then 6 kft agl until 1200, then 9 kft agl until 1700, then
6 kft agl.
* Transport Winds.....Southwest 10 mph until 1400, then 15 mph.
* Chance Lightning....50 percent in the Deerlodge/West
Beaverhead...and 40 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...50 percent in the Deerlodge/West
Beaverhead...and 20 percent in the East Beaverhead.
.SATURDAY...Partly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 40 percent. Lows 50-60. Highs
75-85. Min humidities 15-25 percent. West winds 10-15 mph.
.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 thunderstorms.
Chance of precipitation 30 percent. Lows 50-60. Highs 75-85. South
winds 10-15 mph.
.TUESDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 45-55. Highs
70-80.
.WEDNESDAY...Partly cloudy. Lows 45-55. Highs 75-85.
$$