574
FNUS55 KMSO 141917
FWFMSO

Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
117 PM MDT Sun Sep 14 2025


.DISCUSSION...

Idaho (Zones 102 and 103): Residual showers and cooler temperatures are
expected Monday. An easterly gradient will also develop through Tuesday.
Warming and drying is expected potentially until Friday via a transient
ridge.

Northwest MT (Zones 104 and 105): Residual showers and cooler temperatures are
expected through Tuesday morning in zone 105, likely ending on Monday
for zone 104. An easterly gradient will also develop through Tuesday.
Warming and drying is expected potentially until Friday via a transient
ridge.

West Central MT (Zones 106, 107 and 108): Residual showers and cooler temperatures are
expected Monday. An easterly gradient will also develop through Tuesday.
Warming and drying is expected potentially until Friday via a transient
ridge.

Southwest MT (Zones 109, 110 and 111): Residual showers and cooler temperatures are
expected Monday. An easterly gradient will also develop through Tuesday.
Warming and drying is expected potentially until Friday via a transient
ridge.

View Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula

IDZ102-103-151930-
Palouse/Hells Canyon-Clearwater/Nez Perce-
1217 PM PDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and slight chance
  of thunderstorms in the evening, then rain after midnight.
* Min Temperature.....40-50.
* Max Humidity........79-89 percent.
* 20-Foot Winds.......
*     Lower Elevation......West 5-10 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...60 percent in the Palouse/Hells Canyon...and
  80 percent in the Clearwater/Nez Perce.

.MONDAY...
* Sky/Weather.........Partly cloudy. Chance of rain. Chance of rain
  showers and slight chance of thunderstorms in the afternoon.
* Max Temperature.....65-75 valleys and 50-60 ridges.
* Min Humidity........49-59 percent valleys and 61-71 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Northwest 5-10 mph.
* Mixing Height.......3 kft agl until 1300, then 5 kft agl.
* Transport Winds.....West 10 mph until 1600, then variable less
  than 10 mph.
* Chance Lightning....Near 0 percent in the Palouse/Hells
  Canyon...and 20 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent in the Palouse/Hells Canyon...and
  30 percent in the Clearwater/Nez Perce.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....40-50.
* Max Humidity........74-84 percent.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 2-5 mph.
*     Ridge Top............North up to 5 mph becoming east 5-10 mph
      after midnight.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....0 percent in the Palouse/Hells Canyon...and
  near 0 percent in the Clearwater/Nez Perce.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....80-90 valleys and 65-75 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............East 5-10 mph.
* Mixing Height.......2 kft agl until 1100. 7 kft agl after 1300.
* Transport Winds.....Southeast 10 mph.
* Chance Lightning....0 percent.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Clear. Lows 50-60. Highs 80-90. Min humidities
15-25 percent. Southeast winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities
20-30 percent. East winds 5-10 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 75-85. Diurnal terrain winds
to 10 mph.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 75-85.
.SUNDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 50-60. Highs 70-80.

$$

MTZ104-105-151930-
Kootenai-Flathead/Glacier Park-
117 PM MDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain showers and
  slight chance of thunderstorms in the evening, then chance of
  rain after midnight.
* Min Temperature.....40-50.
* Max Humidity........98-100 percent valleys and 84-94 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............West 5-15 mph.
* Mixing Height.......3 kft agl until 2000, then 1-2 kft agl.
* Transport Winds.....Southwest 15 mph.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...10 percent in the Kootenai...and 50 percent
  in the Flathead/Glacier Park.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain in the morning,
  then chance of rain showers and slight chance of thunderstorms in
  the afternoon.
* Max Temperature.....65-70 valleys and 50-60 ridges.
* Min Humidity........58-68 percent valleys and 80-90 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 1300, then 4 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...30 percent.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain.
* Min Temperature.....45-50.
* Max Humidity........100 percent valleys and 82-92 percent ridges.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............Northwest up to 5 mph becoming northeast
      after midnight.
* Mixing Height.......2 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent in the Kootenai...and 20
  percent in the Flathead/Glacier Park.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-85 valleys and 60-70 ridges.
* Min Humidity........32-42 percent valleys and 49-59 percent
  ridges.
* 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. 7 kft agl after 1300.
* Transport Winds.....Variable less than 10 mph until 1400, then
  southeast 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

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

$$

MTZ106-108-151930-
West Lolo-East Lolo-
117 PM MDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and slight chance
  of thunderstorms in the evening, then chance of rain after
  midnight.
* Min Temperature.....40-50.
* Max Humidity........82-92 percent.
* 20-Foot Winds.......
*     Lower Elevation......West 5-10 mph.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......4 kft agl until 1900, then below 500 ft to 1
  kft agl.
* Transport Winds.....West 15 mph until 2100, then 10 mph.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...20 percent in the West Lolo...and 80 percent
  in the East Lolo.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain in the morning,
  then chance of rain showers and slight chance of thunderstorms in
  the afternoon.
* Max Temperature.....60-70 valleys and 53-63 ridges.
* Min Humidity........49-59 percent valleys and 64-74 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 1200, then 5 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...20 percent.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain.
* Min Temperature.....40-50.
* Max Humidity........80-90 percent.
* 20-Foot Winds.......
*     Lower Elevation......Downslope/downvalley 1-3 mph.
*     Ridge Top............Northwest 5-10 mph becoming northeast up to
      5 mph after midnight.
* Mixing Height.......3 kft agl until 2000, then below 500 ft to 1
  kft agl.
* Transport Winds.....Northwest 10 mph until 0100. Variable less
  than 10 mph after 0400.
* Chance Lightning....Near 0 percent in the West Lolo...and 15
  percent in the East Lolo.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....70-80 valleys and 63-73 ridges.
* Min Humidity........29-39 percent valleys and 40-50 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 1100. 7 kft agl after 1600.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Clear. Lows 45-55. Highs 75-85. Min humidities
20-30 percent. East winds 5-10 mph.
.THURSDAY...Clear. Lows 50-60. Highs 75-85. Min humidities
15-25 percent. Diurnal terrain winds to 10 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 75-85. Northeast winds
5-10 mph.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80.

$$

MTZ107-151930-
Flathead Reservation-
117 PM MDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and slight chance
  of thunderstorms in the evening, then rain likely after midnight.
* Min Temperature.....50-55 valleys and 40-45 ridges.
* Max Humidity........89-99 percent valleys and 100 percent ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-10 mph.
*     Ridge Top............Southwest 5-10 mph.
* Mixing Height.......1-2 kft agl until 2100, then below 500 ft to
  1 kft agl.
* Transport Winds.....Southwest 15 mph until 2200, then variable
  less than 10 mph.
* Chance Lightning....25 percent.
* CWR (> 0.10 Inch)...30 percent in areas west of Highway 93...and
  90 percent in the Mission Mtns and areas east of Highway 93.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of rain in the morning,
  then chance of rain showers and slight chance of thunderstorms in
  the afternoon.
* Max Temperature.....65-70 valleys and 45-50 ridges.
* Min Humidity........64-74 percent valleys and 79-89 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 1200, then 5 kft agl.
* Transport Winds.....West 10 mph until 1700, then variable less
  than 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...10 percent in areas west of Highway 93...and
  40 percent in the Mission Mtns and areas east of Highway 93.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy. Slight chance of rain.
* Min Temperature.....45-50.
* Max Humidity........80-90 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph in the evening
      becoming downslope/downvalley 1-3 mph.
*     Ridge Top............Northwest 5-10 mph becoming northeast up to
      5 mph after midnight.
* Mixing Height.......4 kft agl until 1900, then below 500 ft to 1
  kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....75-80 valleys and 55-60 ridges.
* Min Humidity........45-55 percent valleys and 57-67 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Calm to becoming upslope/upvalley 4-8 mph in
      the afternoon.
*     Ridge Top............East up to 5 mph.
* Mixing Height.......2 kft agl until 1100. 6 kft agl after 1300.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Clear. Lows 50-60. Highs 75-85. Min humidities
25-35 percent. East winds 5-10 mph.
.THURSDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities
20-30 percent. Diurnal terrain winds to 10 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 75-85. Northeast winds
5-10 mph.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 75-85.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80.

$$

MTZ109-151930-
Bitterroot-
117 PM MDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain showers and chance of
  thunderstorms in the evening, then chance of rain after midnight.
* Min Temperature.....40-50.
* Max Humidity........85-95 percent.
* 20-Foot Winds.......
*     Lower Elevation......Northwest 5-10 mph becoming variable less
      than 5 mph after midnight.
*     Ridge Top............West 5-10 mph.
* Mixing Height.......1-2 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....30 percent.
* CWR (> 0.10 Inch)...70 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Rain likely. Chance of rain
  showers and slight chance of thunderstorms in the afternoon.
* Max Temperature.....65-70 valleys and 50-55 ridges.
* Min Humidity........54-64 percent valleys and 60-70 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 1300, then 5 kft agl.
* Transport Winds.....West 10 mph.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...30 percent.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy.
* Min Temperature.....35-45.
* Max Humidity........92-100 percent valleys and 80-90 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 5-10 mph in the evening becoming
      downslope/downvalley 2-5 mph.
*     Ridge Top............North up to 5 mph becoming northeast after
      midnight.
* Mixing Height.......3 kft agl until 2000, then 1-2 kft agl.
* Transport Winds.....Variable less than 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...
* Sky/Weather.........Mostly sunny.
* Max Temperature.....75-80 valleys and 60-65 ridges.
* Min Humidity........34-44 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1300.
* Transport Winds.....East 10 mph.
* Chance Lightning....Near 0 percent.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Clear. Lows 45-55. Highs 70-80. Min humidities
20-30 percent. Southeast winds 5-10 mph.
.THURSDAY...Clear. Lows 50-60. Highs 70-80. Min humidities
15-25 percent. Diurnal terrain winds to 10 mph.
.FRIDAY...Partly cloudy. Lows 50-60. Highs 70-80. Northeast winds
5-10 mph.
.SATURDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 50-60. Highs 70-80.
.SUNDAY...Partly cloudy with slight chance of rain. Chance of rain
20 percent. Lows 45-55. Highs 65-75.

$$

MTZ110-111-151930-
Deerlodge/West Beaverhead-East Beaverhead-
117 PM MDT Sun Sep 14 2025

.TONIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain showers and
  slight chance of thunderstorms.
* Min Temperature.....28-38 valleys and 35-40 ridges.
* Max Humidity........100 percent valleys and 81-91 percent ridges.
* 20-Foot Winds.......
*     Lower Elevation......Southwest 5-15 mph.
*     Ridge Top............Southwest 5-15 mph.
* Mixing Height.......7 kft agl until 1900, then below 500 ft to 1
  kft agl.
* Transport Winds.....West 15 mph until 0100, then variable less
  than 10 mph.
* Chance Lightning....30 percent in the Deerlodge/West
  Beaverhead...and 25 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...60 percent in the Deerlodge/West
  Beaverhead...and 30 percent in the East Beaverhead.

.MONDAY...
* Sky/Weather.........Partly cloudy. Chance of rain showers. Slight
  chance of thunderstorms in the afternoon.
* Max Temperature.....55-65 valleys and 50-55 ridges.
* Min Humidity........46-56 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.
* Chance Lightning....20 percent.
* CWR (> 0.10 Inch)...10 percent.

.MONDAY NIGHT...
* Sky/Weather.........Partly cloudy. Chance of rain and slight
  chance of thunderstorms.
* Min Temperature.....28-38 valleys and 35-40 ridges.
* Max Humidity........100 percent valleys and 84-94 percent ridges.
* 20-Foot Winds.......
*     Lower Elevation......North 5-10 mph.
*     Ridge Top............North 5-10 mph.
* Mixing Height.......4 kft agl until 1900, then below 500 ft to 1
  kft agl.
* Transport Winds.....North 10 mph.
* Chance Lightning....20 percent in the Deerlodge/West
  Beaverhead...and 30 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...10 percent.

.TUESDAY...
* Sky/Weather.........Partly cloudy. Slight chance of rain showers.
* Max Temperature.....65-70 valleys and 55-65 ridges.
* Min Humidity........35-45 percent.
* 20-Foot Winds.......
*     Lower Elevation......Calm to variable less than 7 mph.
*     Ridge Top............Northeast 5-10 mph.
* Mixing Height.......3 kft agl until 1100. 7 kft agl after 1300.
* Transport Winds.....Northeast 10 mph.
* Chance Lightning....Near 0 percent in the Deerlodge/West
  Beaverhead...and 15 percent in the East Beaverhead.
* CWR (> 0.10 Inch)...0 percent.

.WEDNESDAY...Mostly clear. Lows 40-50. Highs 70-80. Min humidities
20-30 percent. East winds 5-10 mph.
.THURSDAY...Clear. Lows 45-55. Highs 70-80. Min humidities
10-20 percent. Southwest winds 5-10 mph.
.FRIDAY...Partly cloudy. Lows 45-55. Highs 70-80. Southeast winds
5-10 mph.
.SATURDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 45-55. Highs 70-80.
.SUNDAY...Partly cloudy with slight chance of rain showers. Chance of
showers 20 percent. Lows 45-55. Highs 65-75.

$$