945
FNUS55 KMSO 020817
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
217 AM MDT Sat Aug 2 2025


.DISCUSSION...

Idaho (Zones 102, 103): Expect another round of wet thunderstorms today.
Tomorrow, a dry slot moves over the region allowing afternoon relative
humidity to drop into the low 20s and into the teens at lower
elevations. Another round of thunderstorms arrives Monday night into
Tuesday morning.

Northwest MT (Zones 104, 105): Expect another round of wet thunderstorms
today. Tomorrow, a dry slot moves over the region allowing afternoon
relative humidity to drop into the low 20s. Another round of
thunderstorms arrives Monday night into Tuesday morning.

West Central MT (Zones 106, 107, 108): Expect another round of wet
thunderstorms today. Tomorrow, a dry slot moves over the region allowing
afternoon relative humidity to drop into the low 20s and into the teens
at lower elevations. Another round of thunderstorms arrives Monday night
into Tuesday morning.

Southwest MT (Zones 109, 110, 111): Expect another round of wet
thunderstorms today. Tomorrow, a dry slot moves over the region allowing
afternoon relative humidity to drop into the low 20s and into the teens
at lower elevations. Another round of thunderstorms arrives Monday night
into Tuesday morning.

IDZ102-103-030830-
Palouse/Hells Canyon-Clearwater/Nez Perce-
117 AM PDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Slight chance of thunderstorms
  in the afternoon.
* Max Temperature.....85-95 valleys and 68-78 ridges.
* Min Humidity........21-31 percent valleys and 30-40 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.....Variable less than 10 mph until 0900, then
  west 10 mph until 1500, then 15 mph.
* Chance Lightning....15 percent in the Palouse/Hells Canyon...and
  40 percent in the Clearwater/Nez Perce.
* 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......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 2100, then variable less
  than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....85-95 valleys and 70-80 ridges.
* Min Humidity........13-23 percent valleys and 19-29 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 west 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....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.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 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 80-90. Southwest winds
5-10 mph.
.THURSDAY...Partly cloudy. Lows 55-65. Highs 75-85.
.FRIDAY...Partly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 55-65. Highs
70-80.

$$

MTZ104-105-030830-
Kootenai-Flathead/Glacier Park-
217 AM MDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms.
* Max Temperature.....75-85 valleys and 60-70 ridges.
* Min Humidity........40-50 percent valleys and 65-75 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 10-15 mph.
*     Ridge Top............West 10-15 mph.
* Mixing Height.......3 kft agl until 1100. 6 kft agl after 1400.
* Transport Winds.....West 10 mph until 1300, then 15 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...50 percent in the Kootenai...and 70 percent
  in the Flathead/Glacier Park.

.TONIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers
  and thunderstorms.
* Min Temperature.....50-55.
* Max Humidity........86-96 percent valleys and 75-85 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.......5 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....West 15 mph until 2100, then variable less
  than 10 mph.
* Chance Lightning....20 percent in the Kootenai...and 25 percent
  in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....80-90 valleys and 65-75 ridges.
* Min Humidity........20-30 percent valleys and 31-41 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 10-15 mph.
*     Ridge Top............Southwest 10-15 mph.
* Mixing Height.......2 kft agl until 1000. 10 kft agl after 1400.
* Transport Winds.....West 10 mph until 1300, then 15 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 55-65. Highs 70-80. Min humidities 25-35 percent.
Southwest 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. Min humidities 25-35 percent. Southwest winds 10-15 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 70-80. Southwest winds
10-15 mph.
.THURSDAY...Mostly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 65-75.
.FRIDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
65-75.

$$

MTZ106-108-030830-
West Lolo-East Lolo-
217 AM MDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  thunderstorms.
* Max Temperature.....75-85 valleys and 68-78 ridges.
* Min Humidity........31-41 percent valleys and 39-49 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 1000. 7 kft agl after 1500.
* Transport Winds.....West 10 mph until 1200, then 15 mph.
* Chance Lightning....40 percent in the West Lolo...and 50 percent
  in the East Lolo.
* CWR (> 0.10 Inch)...30 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....48-58.
* Max Humidity........68-78 percent valleys and 56-66 percent
  ridges.
* 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.......6 kft agl until 2000. Below 500 ft to 1 kft
  agl after 2100.
* Transport Winds.....West 15 mph until 2100, then variable less
  than 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........10-20 percent valleys and 16-26 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.

.MONDAY...Partly cloudy with chance of rain. Chance of rain 30 percent.
Lows 55-65. Highs 75-85. Min humidities 25-35 percent. West 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. Min
humidities 20-30 percent. West winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 50-60. Highs 75-85. Southwest winds
10-15 mph.
.THURSDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 55-65. Highs 70-80.
.FRIDAY...Mostly cloudy with chance of rain showers and slight chance
of thunderstorms. Chance of precipitation 30 percent. Lows 50-60. Highs
65-75.

$$

MTZ107-030830-
Flathead Reservation-
217 AM MDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Mostly cloudy. Rain showers likely and chance
  of thunderstorms.
* Max Temperature.....80-85 valleys and 60-65 ridges.
* Min Humidity........37-47 percent valleys and 59-69 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. 6 kft agl after 1600.
* Transport Winds.....Southwest 10 mph.
* Chance Lightning....50 percent.
* CWR (> 0.10 Inch)...40 percent in areas west of Highway 93...and
  60 percent in the Mission Mtns and areas east of Highway 93.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....50-60.
* Max Humidity........60-70 percent.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-10 mph.
*     Ridge Top............Southwest 10-15 mph.
* Mixing Height.......5 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....Near 0 percent in areas west of Highway
  93...and 15 percent in the Mission Mtns and areas east of Highway
  93.
* CWR (> 0.10 Inch)...0 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....90-95 valleys and 65-70 ridges.
* Min Humidity........12-22 percent valleys and 20-30 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Southwest 5-10 mph.
* Mixing Height.......1-2 kft agl until 1000. 12 kft agl after
  1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...Partly cloudy with chance of rain. Chance of rain 30 percent.
Lows 55-65. Highs 75-85. Min humidities 20-30 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. Min
humidities 15-25 percent. Southwest winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 55-65. Highs 80-90. Southwest winds
10-15 mph.
.THURSDAY...Mostly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 55-65. Highs 75-85.
.FRIDAY...Mostly cloudy with chance of rain and slight chance of
thunderstorms. Chance of precipitation 30 percent. Lows 55-65. Highs
70-80.

$$

MTZ109-030830-
Bitterroot-
217 AM MDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  thunderstorms.
* Max Temperature.....80-85 valleys and 65-75 ridges.
* Min Humidity........30-40 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 1000. 9 kft agl after 1500.
* Transport Winds.....West 10 mph until 1400, then 15 mph.
* Chance Lightning....40 percent.
* CWR (> 0.10 Inch)...10 percent.

.TONIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....45-55.
* Max Humidity........77-87 percent valleys and 55-65 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northwest 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......7 kft agl until 2000. 1-2 kft agl after 2100.
* Transport Winds.....Northwest 15 mph until 2100, 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........18-28 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. 10 kft agl after 1300.
* Transport Winds.....West 10 mph until 1700, then 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.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 50 percent. Lows 50-60. Highs 70-80. Min
humidities 20-30 percent. West winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 50-60. Highs 75-85. Southwest winds
5-10 mph.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 70-80.
.FRIDAY...Mostly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
65-75.

$$

MTZ110-111-030830-
Deerlodge/West Beaverhead-East Beaverhead-
217 AM MDT Sat Aug 2 2025

.TODAY...
* Sky/Weather.........Partly cloudy. Chance of thunderstorms in the
  afternoon.
* Max Temperature.....73-83 valleys and 65-70 ridges.
* Min Humidity........25-35 percent valleys and 31-41 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......West 5-15 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 1000, then 4 kft agl until
  1100, then 7 kft agl until 1300, then 9 kft agl until 1400, then
  11 kft agl until 1700, then 8 kft agl.
* Transport Winds.....West 10 mph until 1200, then 15 mph.
* Chance Lightning....50 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........85-95 percent valleys and 67-77 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northwest 10-15 mph in the evening becoming
      downslope/downvalley 5-10 mph.
*     Ridge Top............Northwest 5-15 mph.
* Mixing Height.......6 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....20 percent in the Deerlodge/West
  Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.

.SUNDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-85 valleys and 65-75 ridges.
* Min Humidity........15-25 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......3 kft agl until 1000. 11 kft agl after 1400.
* Transport Winds.....West 10 mph.
* Chance Lightning....Near 0 percent in the Deerlodge/West
  Beaverhead...and 20 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...0 percent.

.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 15-25 percent. South 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. Min
humidities 10-20 percent. West winds 10-15 mph.
.WEDNESDAY...Mostly clear. Lows 45-55. Highs 75-85. West winds
10-15 mph.
.THURSDAY...Partly cloudy. Lows 50-60. Highs 75-85.
.FRIDAY...Cooler. Mostly cloudy with slight chance of rain showers and
thunderstorms. Chance of precipitation 20 percent. Lows 50-60. Highs
65-75.

$$