117
FNUS55 KMSO 010834
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
234 AM MDT Fri Aug 1 2025


.DISCUSSION...

Idaho (Zones 102 and 103): Widespread rain showers will begin this
morning on the Palouse and spread east by this afternoon. Thunderstorms
will arrive this afternoon (50-60% chance). Storms will be capable of
heavy rain, frequent lightning, and gusty outflow winds of 30-40 mph.
Shower activity will continue into Saturday morning.

Northwest MT (Zones 104 and 105): Cloud cover will increase this
afternoon ahead of rain showers arriving this afternoon and overnight
tonight. Thunderstorms will be likely once again this afternoon/evening
(50-70% chance). Storms will be capable of heavy rain, frequent
lightning, and gusty outflow winds of 30-40 mph. Shower activity will
continue through Saturday.

West Central MT (Zones 106, 107 and 108): Cloud cover will increase this
afternoon ahead of rain showers arriving this afternoon and overnight
tonight. Thunderstorms will be possible once again this
afternoon/evening (50% chance). Storms will be capable of heavy rain,
frequent lightning, and gusty outflow winds of 30-40 mph. Shower
activity will continue through Saturday.

Southwest MT (Zones 109, 110 and 111):  Cloud cover will increase this
afternoon. Thunderstorms will be likely once again this
afternoon/evening (60% chance). Storms will be capable of heavy rain,
frequent lightning, and gusty outflow winds of 30-40 mph. Thunderstorm
activity will be present again on Saturday.

IDZ102-103-020845-
Palouse/Hells Canyon-Clearwater/Nez Perce-
134 AM PDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Rain showers and chance of
  thunderstorms.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........39-49 percent valleys and 50-60 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 1500.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....60 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
  70 percent in the Clearwater/Nez Perce.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  thunderstorms.
* Min Temperature.....55-60 valleys and 48-58 ridges.
* Max Humidity........68-78 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............West up to 5 mph.
* Mixing Height.......4 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....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)...30 percent.

.SATURDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain in the
  morning. Slight chance of thunderstorms in the afternoon.
* Max Temperature.....85-95 valleys and 68-78 ridges.
* Min Humidity........24-34 percent valleys and 34-44 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 1600.
* Transport Winds.....Variable less than 10 mph until 0900, then
  west 10 mph.
* Chance Lightning....20 percent in the Palouse/Hells Canyon...and
  30 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. Southwest winds 5-10 mph.
.MONDAY...Not as warm. Mostly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 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 75-85.

$$

MTZ104-105-020845-
Kootenai-Flathead/Glacier Park-
234 AM MDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Partly cloudy then becoming cloudy. Slight
  chance of rain in the morning. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........38-48 percent valleys and 55-65 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southeast 5-10 mph becoming southwest 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 in the Kootenai...and 60 percent
  in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...60 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms.
* Min Temperature.....50-60.
* Max Humidity........100 percent valleys and 86-96 percent ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph in the evening
      becoming downslope/downvalley 1-3 mph.
*     Ridge Top............Southwest 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 in the Kootenai...and 70 percent
  in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...50 percent.

.SATURDAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms.
* Max Temperature.....75-85 valleys and 60-70 ridges.
* Min Humidity........47-57 percent valleys and 71-81 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southwest 10-15 mph.
* Mixing Height.......3 kft agl until 1100. 6 kft agl after 1400.
* Transport Winds.....Southwest 10 mph until 1500, then west 15
  mph.
* Chance Lightning....50 percent in the Kootenai...and 60 percent
  in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...50 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 15-25 percent. Southwest 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
70-80. Min humidities 25-35 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 65-75.
.THURSDAY...Mostly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 65-75.

$$

MTZ106-108-020845-
West Lolo-East Lolo-
234 AM MDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Partly cloudy then becoming cloudy. Slight
  chance of rain in the morning. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....75-85 valleys and 68-78 ridges.
* Min Humidity........35-45 percent valleys and 42-52 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
  1200, then 7 kft agl until 1700, then 4 kft agl.
* Transport Winds.....Variable less than 10 mph until 0900, then
  west 10 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...60 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms in the evening, then chance of rain after
  midnight.
* 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.......3 kft agl until 2000, 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. Chance of rain in the morning.
  Chance of thunderstorms in the afternoon.
* Max Temperature.....75-85 valleys and 68-78 ridges.
* Min Humidity........36-46 percent valleys and 43-53 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. 7 kft agl after 1300.
* Transport Winds.....West 10 mph until 1200, then 15 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...30 percent.

.SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
10-20 percent. West winds 5-10 mph.
.MONDAY...Not as warm. Partly cloudy with chance of rain showers and
thunderstorms. Chance of precipitation 40 percent. Lows 55-65. Highs
70-80. Min humidities 35-45 percent. Northwest 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. Southwest
winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 70-80.
.THURSDAY...Mostly cloudy. Lows 50-60. Highs 70-80.

$$

MTZ107-020845-
Flathead Reservation-
234 AM MDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Slight chance of rain in the
  morning, then rain showers and chance of thunderstorms in the
  afternoon.
* Max Temperature.....85-90 valleys and 60-65 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............West 5-10 mph.
* Mixing Height.......3 kft agl until 1100, then 5 kft agl until
  1300, then 7 kft agl until 1700, then 5 kft agl.
* Transport Winds.....Variable less than 10 mph until 1200, then
  west 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...40 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms in the evening, then chance of rain after
  midnight.
* Min Temperature.....55-60.
* Max Humidity........79-89 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-10 mph.
*     Ridge Top............Southwest 5-10 mph.
* Mixing Height.......2 kft agl until 2100, 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. Chance of rain showers and
  thunderstorms.
* Max Temperature.....80-85 valleys and 55-60 ridges.
* Min Humidity........42-52 percent valleys and 65-75 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............West 5-10 mph becoming 5-15 mph in the
      afternoon.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1500.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...50 percent.

.SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. Min humidities
10-20 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. Min humidities 25-35 percent. Northwest winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 55-65. Highs 75-85. Southwest
winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 75-85.
.THURSDAY...Mostly cloudy. Lows 55-65. Highs 70-80.

$$

MTZ109-020845-
Bitterroot-
234 AM MDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Partly cloudy then becoming cloudy. Slight
  chance of rain in the morning, then rain showers and chance of
  thunderstorms in the afternoon.
* Max Temperature.....80-85 valleys and 65-75 ridges.
* Min Humidity........38-48 percent valleys and 44-54 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. 6 kft agl after 1200.
* Transport Winds.....Southwest 10 mph until 1700, then west 10
  mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...70 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  thunderstorms. Slight chance of rain after midnight.
* Min Temperature.....45-55.
* Max Humidity........88-98 percent valleys and 76-86 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......South 5-10 mph decreasing to variable less
      than 5 mph after midnight.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......4 kft agl until 2000, then 1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...40 percent.

.SATURDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....80-85 valleys and 65-75 ridges.
* Min Humidity........34-44 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.......2 kft agl until 1000. 7 kft agl after 1600.
* Transport Winds.....West 10 mph until 1600, then northwest 15
  mph.
* Chance Lightning....40 percent in the Darby, Sula, and West Fork
  Districts...and 30 percent in areas north of Hamilton.
* CWR (> 0.10 Inch)...20 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 thunderstorms.
Chance of precipitation 50 percent. Lows 50-60. Highs 70-80. Min
humidities 30-40 percent. North winds 5-10 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 45-55. Highs 70-80. Southwest
winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 70-80.

$$

MTZ110-111-020845-
Deerlodge/West Beaverhead-East Beaverhead-
234 AM MDT Fri Aug 1 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....75-85 valleys and 65-70 ridges.
* Min Humidity........29-39 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............Southwest 5-15 mph.
* Mixing Height.......2 kft agl until 1000, then 5 kft agl until
  1100, then 8 kft agl until 1200, then 11 kft agl until 1700, then
  9 kft agl.
* Transport Winds.....Southwest 10 mph until 1300, then 15 mph.
* Chance Lightning....60 percent.
* CWR (> 0.10 Inch)...60 percent in the Deerlodge/West
  Beaverhead...and 20 percent in the East Beaverhead.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  slight chance of thunderstorms.
* Min Temperature.....38-48 valleys and 45-50 ridges.
* Max Humidity........92-100 percent valleys and 71-81 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......West 5-10 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......6 kft agl until 1900. Below 500 ft to 1 kft
  agl after 2000.
* Transport Winds.....West 15 mph until 2200, then variable less
  than 10 mph.
* Chance Lightning....30 percent in the Deerlodge/West
  Beaverhead...and 40 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.

.SATURDAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....70-80 valleys and 65-70 ridges.
* Min Humidity........26-36 percent.
* 20-Foot Winds.......
*     Lower Elevation......West 5-15 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......2 kft agl until 1000, then 4 kft agl until
  1100, then 7 kft agl until 1300, then 10 kft agl until 1700, then
  7 kft agl.
* Transport Winds.....West 10 mph until 1400, then 15 mph.
* Chance Lightning....40 percent in the Deerlodge/West
  Beaverhead...and 30 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 40 percent. Lows 50-60. Highs
75-85. Min humidities 15-25 percent. Southeast winds 10-15 mph.
.TUESDAY...Partly cloudy with chance of rain showers and thunderstorms.
Chance of precipitation 40 percent. Lows 45-55. Highs 70-80. West winds
10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 45-55. Highs 75-85.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 75-85.

$$