


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
416 FNUS55 KMSO 212024 FWFMSO Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho National Weather Service Missoula MT 224 PM MDT Mon Jul 21 2025 .DISCUSSION... Idaho (Zones 102 and 103): Precipitation type will transition to more convective this evening, with hit or miss showers and thunderstorms developing. If under a stronger shower or thunderstorm, very heavy rainfall rates are still possible. Tuesday will remain cool and showery but with overall lower chances of wetting rain unless directly under a shower or thunderstorm. A warming and drying trend will begin Wednesday. Northwest MT (Zones 104 and 105): Widespread light to moderate precipitation will continue to spread into the region tonight, with a low chance of thunderstorms. Cool and wet conditions will continue for Tuesday, but precipitation will become more convective in nature by Tuesday afternoon. Very heavy rainfall rates will be possible under storm cores. A warming and drying trend will begin Wednesday. West Central MT (Zones 106, 107 and 108): Precipitation type will transition to more convective this evening, with hit or miss showers and thunderstorms developing. If under a stronger shower or thunderstorm, very heavy rainfall rates are still possible. Tuesday will remain cool and showery but with overall lower chances of wetting rain unless directly under a shower or thunderstorm. Overall, through Tuesday, wetting rain chances are greatest in 106/107 and lowest in 108. A warming and drying trend will begin Wednesday. Southwest MT (Zones 109, 110 and 111): Warm, dry and breezy conditions will continue into this evening for areas south of Dillon, while north of Dillon, isolated to scattered thunderstorms will develop into this evening. Thunderstorms will be capable of heavy rainfall rates in localized areas. Tuesday will trend cooler and showery with afternoon thunderstorms again capable of heavy rain. A warming and drying trend will begin Wednesday. IDZ102-103-222030- Palouse/Hells Canyon-Clearwater/Nez Perce- 124 PM PDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms. * Min Temperature.....50-55 valleys and 43-53 ridges. * Max Humidity........78-88 percent. * 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 2100, then below 500 ft to 1 kft agl. * Transport Winds.....Variable less than 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. .TUESDAY... * Sky/Weather.........Partly cloudy. Chance of rain showers. Chance of thunderstorms in the afternoon. * Max Temperature.....78-88 valleys and 60-70 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 10-15 mph. * Mixing Height.......3 kft agl until 1000. 9 kft agl after 1500. * Transport Winds.....West 10 mph. * Chance Lightning....30 percent. * CWR (> 0.10 Inch)...10 percent. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. * Min Temperature.....45-55. * Max Humidity........66-76 percent. * 20-Foot Winds....... * Lower Elevation......Downslope/downvalley 1-3 mph. * Ridge Top............Northwest 5-10 mph becoming south up to 5 mph after midnight. * Mixing Height.......8 kft agl until 1900. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....Northwest 10 mph until 2200. Variable less than 10 mph after 0400. * Chance Lightning....20 percent in the Palouse/Hells Canyon...and near 0 percent in the Clearwater/Nez Perce. * CWR (> 0.10 Inch)...0 percent. .WEDNESDAY... * Sky/Weather.........Mostly sunny. * Max Temperature.....85-95 valleys and 70-75 ridges. * Min Humidity........20-30 percent. * 20-Foot Winds....... * Lower Elevation......Calm becoming upslope/upvalley 4-8 mph in the afternoon. * Ridge Top............Southwest up to 5 mph becoming west 5-10 mph in the afternoon. * Mixing Height.......3 kft agl until 1000. 11 kft agl after 1500. * Transport Winds.....Variable less than 10 mph until 0900. West 10 mph after 1700. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .THURSDAY...Clear. Lows 55-65. Highs 85-95. Min humidities 10-20 percent. Southwest winds 5-10 mph. .FRIDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities 10-20 percent. Southwest winds 10-15 mph. .SATURDAY...Mostly clear. Lows 55-65. Highs 80-90. West winds 10-15 mph. .SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. .MONDAY...Mostly clear. Lows 55-65. Highs 85-95. $$ MTZ104-105-222030- Kootenai-Flathead/Glacier Park- 224 PM MDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Mostly cloudy. Rain showers and chance of thunderstorms. Patchy fog after midnight. * Min Temperature.....45-55. * 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............East 5-10 mph becoming south after midnight. * Mixing Height.......1-2 kft agl. * Transport Winds.....Variable less than 10 mph. * Chance Lightning....30 percent. * CWR (> 0.10 Inch)...60 percent in the Kootenai...and 40 percent in the Flathead/Glacier Park. .TUESDAY... * Sky/Weather.........Mostly cloudy. Rain showers and chance of thunderstorms. * Max Temperature.....65-75 valleys and 50-60 ridges. * Min Humidity........55-65 percent valleys and 77-87 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, then 5 kft agl. * Transport Winds.....Southwest 10 mph. * Chance Lightning....50 percent. * CWR (> 0.10 Inch)...70 percent. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. Chance of rain showers and thunderstorms. * Min Temperature.....45-50. * Max Humidity........100 percent valleys and 88-98 percent ridges. * 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 south after midnight. * Mixing Height.......3 kft agl until 2100, then below 500 ft to 1 kft agl. * Transport Winds.....Northwest 10 mph until 2200, then variable less than 10 mph. * Chance Lightning....30 percent. * CWR (> 0.10 Inch)...30 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. * Max Temperature.....75-85 valleys and 60-70 ridges. * Min Humidity........29-39 percent valleys and 44-54 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm becoming upslope/upvalley 4-8 mph in the afternoon. * Ridge Top............Southwest 5-15 mph. * Mixing Height.......3 kft agl until 1000. 9 kft agl after 1600. * Transport Winds.....Southwest 10 mph until 1100, then west 20 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .THURSDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities 20-30 percent. Southwest winds 10-15 mph. .FRIDAY...Clear. Lows 55-65. Highs 75-85. Min humidities 15-25 percent. Southwest winds 10-20 mph. .SATURDAY...Mostly clear. Lows 50-60. Highs 75-85. Southwest winds 10-20 mph. .SUNDAY...Partly cloudy. Lows 55-65. Highs 75-85. .MONDAY...Mostly clear. Lows 55-65. Highs 80-90. $$ MTZ106-108-222030- West Lolo-East Lolo- 224 PM MDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening, then slight chance of rain after midnight. Patchy fog after midnight. * Min Temperature.....45-55. * Max Humidity........81-91 percent. * 20-Foot Winds....... * Lower Elevation......Variable less than 5 mph. * Ridge Top............Southwest 5-10 mph. * Mixing Height.......3 kft agl until 2100, then below 500 ft to 1 kft agl. * Transport Winds.....Variable less than 10 mph. * Chance Lightning....30 percent in the West Lolo...and 40 percent in the East Lolo. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Chance of rain showers and thunderstorms. * Max Temperature.....63-73. * 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 5-15 mph. * Mixing Height.......3 kft agl until 1000. 7 kft agl after 1200. * Transport Winds.....West 10 mph until 1100, then 15 mph. * Chance Lightning....40 percent. * CWR (> 0.10 Inch)...30 percent in the West Lolo...and 10 percent in the East Lolo. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms. * Min Temperature.....45-55. * Max Humidity........84-94 percent valleys and 76-86 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-10 mph in the evening becoming downslope/downvalley 2-5 mph. * Ridge Top............Northwest 5-15 mph becoming west up to 5 mph after midnight. * 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....25 percent in the West Lolo...and near 0 percent in the East Lolo. * CWR (> 0.10 Inch)...10 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. * Max Temperature.....75-85 valleys and 68-78 ridges. * Min Humidity........18-28 percent valleys and 28-38 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............West 10-15 mph. * Mixing Height.......2 kft agl until 0900. 10 kft agl after 1300. * Transport Winds.....Southwest 10 mph until 1200, then west 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .THURSDAY...Mostly clear. Lows 50-60. Highs 80-90. Min humidities 10-20 percent. Southwest winds 10-15 mph. .FRIDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities 10-20 percent. Southwest winds 10-15 mph. .SATURDAY...Mostly clear. Lows 55-65. Highs 80-90. Southwest winds 10-15 mph. .SUNDAY...Partly cloudy. Lows 55-65. Highs 80-90. .MONDAY...Mostly clear. Lows 55-65. Highs 85-95. $$ MTZ107-222030- Flathead Reservation- 224 PM MDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Mostly cloudy. Rain showers likely and slight chance of thunderstorms. * Min Temperature.....45-55. * Max Humidity........83-93 percent. * 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.......1-2 kft agl until 2200, then below 500 ft to 1 kft agl. * Transport Winds.....Variable less than 10 mph. * Chance Lightning....30 percent. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * 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 62-72 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............Southwest 5-15 mph. * Mixing Height.......3 kft agl until 1000. 6 kft agl after 1200. * Transport Winds.....Southwest 10 mph until 1300, then west 15 mph. * Chance Lightning....50 percent. * CWR (> 0.10 Inch)...30 percent. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms. * Min Temperature.....45-55. * Max Humidity........92-100 percent valleys and 85-95 percent ridges. * 20-Foot Winds....... * Lower Elevation......Downslope/downvalley 1-3 mph. * Ridge Top............West 5-15 mph. * Mixing Height.......5 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....Northwest 10 mph until 2200, then variable less than 10 mph. * Chance Lightning....25 percent. * CWR (> 0.10 Inch)...10 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. * Max Temperature.....80-85 valleys and 60-65 ridges. * Min Humidity........22-32 percent valleys and 35-45 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm becoming upslope/upvalley 4-8 mph in the afternoon. * Ridge Top............West 5-15 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 until 1200, then 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .THURSDAY...Mostly clear. Lows 55-65. Highs 85-95. Min humidities 15-25 percent. Southwest winds 10-15 mph. .FRIDAY...Clear. Lows 55-65. Highs 85-95. Min humidities 10-20 percent. Southwest winds 10-20 mph. .SATURDAY...Mostly clear. Lows 55-65. Highs 85-95. Southwest winds 10-15 mph. .SUNDAY...Partly cloudy. Lows 55-65. Highs 85-95. .MONDAY...Mostly clear. Lows 55-65. Highs 85-95. $$ MTZ109-222030- Bitterroot- 224 PM MDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Mostly cloudy. Areas of smoke in the evening. Chance of rain showers and thunderstorms. * Min Temperature.....45-55. * Max Humidity........90-100 percent valleys and 81-91 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-10 mph. * Ridge Top............West 5-10 mph becoming southwest after midnight. * Mixing Height.......3 kft agl until 2100, then 1-2 kft agl. * Transport Winds.....West 15 mph until 2100, then variable less than 10 mph. * Chance Lightning....40 percent. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Chance of rain showers and thunderstorms. * Max Temperature.....80-85 valleys and 65-70 ridges. * Min Humidity........25-35 percent valleys and 32-42 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to becoming 5-15 mph in the afternoon. * Ridge Top............West 5-15 mph. * Mixing Height.......2 kft agl until 0900. 9 kft agl after 1300. * Transport Winds.....West 10 mph until 1200, then 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)...10 percent. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. * Min Temperature.....45-55. * Max Humidity........83-93 percent valleys and 69-79 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-10 mph. * Ridge Top............Northwest 5-15 mph decreasing to up to 5 mph after midnight. * Mixing Height.......6 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....West 15 mph until 2200, then variable less than 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .WEDNESDAY... * Sky/Weather.........Mostly sunny. * Max Temperature.....80-85 valleys and 70-75 ridges. * Min Humidity........16-26 percent valleys and 23-33 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 0900. 10 kft agl after 1300. * Transport Winds.....West 10 mph until 1300, then 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .THURSDAY...Mostly clear. Lows 50-60. Highs 75-85. Min humidities 10-20 percent. West winds 10-15 mph. .FRIDAY...Mostly clear. Lows 55-65. Highs 80-90. Min humidities 10-20 percent. Southwest winds 10-15 mph. .SATURDAY...Partly cloudy. Lows 55-65. Highs 80-90. West winds 10-15 mph. .SUNDAY...Partly cloudy. Lows 50-60. Highs 80-90. .MONDAY...Mostly clear. Lows 50-60. Highs 80-90. $$ MTZ110-111-222030- Deerlodge/West Beaverhead-East Beaverhead- 224 PM MDT Mon Jul 21 2025 .TONIGHT... * Sky/Weather.........Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. * Min Temperature.....45-50. * Max Humidity........92-100 percent valleys and 75-85 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 20-30 mph becoming variable less than 5 mph after midnight. * Ridge Top............West 15-25 mph becoming southwest 5-10 mph after midnight. * Mixing Height.......9 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....West 20 mph until 2100. Variable less than 10 mph after 0500. * Chance Lightning....40 percent in the Deerlodge/West Beaverhead...and 30 percent in the East Beaverhead. * CWR (> 0.10 Inch)...10 percent. .TUESDAY... * Sky/Weather.........Partly cloudy. Chance of rain showers. Chance of thunderstorms in the afternoon. * Max Temperature.....70-80 valleys and 65-70 ridges. * Min Humidity........23-33 percent. * 20-Foot Winds....... * Lower Elevation......West 10-20 mph. * Ridge Top............West 10-20 mph. * Mixing Height.......1-2 kft agl until 0900. 8 kft agl after 1300. * Transport Winds.....Southwest 10 mph until 1000, then west 20 mph. * Chance Lightning....40 percent. * CWR (> 0.10 Inch)...10 percent. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain showers and thunderstorms. * Min Temperature.....40-50. * Max Humidity........95-100 percent valleys and 79-89 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-15 mph in the evening becoming downslope/downvalley 2-5 mph. * Ridge Top............Northwest 10-20 mph decreasing to 5-10 mph after midnight. * Mixing Height.......6 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....West 15 mph until 2200. Variable less than 10 mph after 0500. * Chance Lightning....15 percent in the Deerlodge/West Beaverhead...and 25 percent in the East Beaverhead. * CWR (> 0.10 Inch)...10 percent. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Slight chance of thunderstorms in the afternoon. * Max Temperature.....75-85 valleys and 65-70 ridges. * Min Humidity........17-27 percent. * 20-Foot Winds....... * Lower Elevation......Calm to becoming west 5-15 mph in the afternoon. * Ridge Top............West up to 5 mph increasing to 5-15 mph in the afternoon. * Mixing Height.......1-2 kft agl until 0900. 11 kft agl after 1400. * Transport Winds.....West 10 mph until 1200, then 15 mph. * Chance Lightning....20 percent in the Deerlodge/West Beaverhead...and 30 percent in the East Beaverhead. * CWR (> 0.10 Inch)...10 percent. .THURSDAY...Mostly clear. Lows 50-60. Highs 80-90. Min humidities 10-20 percent. West winds 10-15 mph. .FRIDAY...Mostly clear. Lows 50-60. Highs 80-90. Min humidities 10-20 percent. Southwest winds 10-15 mph. .SATURDAY...Partly cloudy with slight chance of rain showers. Chance of showers 20 percent. Lows 50-60. Highs 80-90. Southwest winds 10-15 mph. .SUNDAY...Partly cloudy. Lows 50-60. Highs 80-90. .MONDAY...Mostly clear. Lows 50-60. Highs 80-90. $$