


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
059 FNUS55 KMSO 150950 FWFMSO Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho National Weather Service Missoula MT 350 AM MDT Thu May 15 2025 .DISCUSSION... Idaho (Zones 102 and 103): General terrain-driven showers today. Rain expected Friday morning, then general showers. Another weather system will bring widespread precipitation Saturday and Sunday. Unsettled and cooler conditions expected early next week then gradual warm-up. Northwest MT (Zones 104 and 105):General terrain-driven showers and thunderstorms today. Showers develop again Friday afternoon. Another weather system will bring widespread precipitation late Saturday and all day Sunday. Unsettled and cooler conditions expected early next week then gradual warm-up. West Central MT (Zones 106, 107 and 108):General terrain-driven showers today. Showers develop again Friday afternoon. Another weather system will bring widespread precipitation late Saturday and all day Sunday. Unsettled and cooler conditions expected early next week then gradual warm-up. Southwest MT (Zones 109, 110 and 111):General terrain-driven showers today. Showers develop again Friday afternoon. Another weather system will bring widespread precipitation late Saturday and all day Sunday. Unsettled and cooler conditions expected early next week then gradual warm-up. View Weather Briefing videos on our YouTube channel at https://www.youtube.com/NWSMissoula IDZ102-103-161000- Palouse/Hells Canyon-Clearwater/Nez Perce- 250 AM PDT Thu May 15 2025 .TODAY... * Sky/Weather.........Partly cloudy. Chance of rain and snow. Snow level 6000 feet. * Max Temperature.....60-70 valleys and 45-55 ridges. * Min Humidity........40-50 percent valleys and 51-61 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 0900. 6 kft agl after 1400. * Transport Winds.....West 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Mostly cloudy. Chance of snow after midnight. Snow level 6500 feet. * Min Temperature.....33-43. * Max Humidity........74-84 percent. * 20-Foot Winds....... * Lower Elevation......Variable less than 5 mph in the evening becoming downslope/downvalley 1-3 mph. * Ridge Top............Northwest 5-15 mph decreasing to up to 5 mph after midnight. * Mixing Height.......5 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....West 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Rain showers and snow likely in the morning, then rain likely in the afternoon. Snow level 6000 feet. * Max Temperature.....55-65 valleys and 40-50 ridges. * Min Humidity........50-60 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. 4 kft agl after 1500. * Transport Winds.....West 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...40 percent. .SATURDAY...Mostly cloudy with slight chance of rain. Chance of rain 20 percent. Lows 40-50. Highs 60-70. Min humidities 40-50 percent. South winds 5-10 mph. .SUNDAY...Cooler. Mostly cloudy with rain and slight chance of thunderstorms. Chance of precipitation 90 percent. Lows 40-50. Highs 45-55. Min humidities 50-60 percent. West winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent. Lows 40-50. Highs 55-65. West winds 10-15 mph. .TUESDAY...Partly cloudy with chance of rain showers and slight chance of thunderstorms. Chance of precipitation 40 percent. Lows 40-50. Highs 55-65. .WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain 20 percent. Lows 40-50. Highs 60-70. $$ MTZ104-105-161000- Kootenai-Flathead/Glacier Park- 350 AM MDT Thu May 15 2025 .TODAY... * Sky/Weather.........Mostly cloudy. Snow in the morning. Rain. Snow level 6500 feet. * Max Temperature.....55-65 valleys and 40-50 ridges. * Min Humidity........46-56 percent valleys and 68-78 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 10-15 mph. * Ridge Top............West 10-15 mph. * Mixing Height.......3 kft agl until 0900. 6 kft agl after 1300. * Transport Winds.....West 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...30 percent in the Kootenai...and 80 percent in the Flathead/Glacier Park. .TONIGHT... * Sky/Weather.........Partly cloudy. Chance of rain. Snow level 6500 feet. * Min Temperature.....30-40. * Max Humidity........89-99 percent valleys and 79-89 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. 1-2 kft agl after 2100. * Transport Winds.....West 10 mph. * Chance Lightning....Near 0 percent in the Kootenai...and 15 percent in the Flathead/Glacier Park. * CWR (> 0.10 Inch)...10 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Chance of rain and snow in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Snow level 6500 feet. * Max Temperature.....60-65 valleys and 40-50 ridges. * Min Humidity........43-53 percent valleys and 63-73 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............Southwest 10-15 mph. * Mixing Height.......2 kft agl until 0900. 5 kft agl after 1100. * Transport Winds.....Southwest 10 mph until 1600, then west 15 mph. * Chance Lightning....20 percent. * CWR (> 0.10 Inch)...20 percent. .SATURDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent. Lows 35-45. Highs 55-65. Min humidities 30-40 percent. Southwest winds 5-10 mph. .SUNDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent. Lows 40-50. Highs 50-60. Min humidities 50-60 percent. North winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent. Lows 40-50. Highs 50-60. West winds 10-15 mph. .TUESDAY...Mostly cloudy with chance of rain. Chance of rain 50 percent. Lows 40-50. Highs 50-60. .WEDNESDAY...Partly cloudy with chance of rain and snow. Chance of precipitation 30 percent. Lows 35-45. Highs 55-65. $$ MTZ106-108-161000- West Lolo-East Lolo- 350 AM MDT Thu May 15 2025 .TODAY... * Sky/Weather.........Mostly cloudy. Chance of snow in the morning. Chance of rain. Snow level 6500 feet. * Max Temperature.....50-60 valleys and 43-53 ridges. * Min Humidity........41-51 percent valleys and 52-62 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-15 mph. * Ridge Top............West 5-15 mph. * Mixing Height.......2 kft agl until 0800. 6 kft agl after 1700. * Transport Winds.....West 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain. Snow level 6500 feet. * Min Temperature.....30-40. * Max Humidity........83-93 percent valleys and 77-87 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 10-15 mph. * Ridge Top............West 10-15 mph. * Mixing Height.......5 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....West 15 mph until 0400, then variable less than 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Chance of snow in the morning. Chance of rain. Snow level 6500 feet. * Max Temperature.....50-60 valleys and 43-53 ridges. * Min Humidity........42-52 percent valleys and 54-64 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............West 5-15 mph. * Mixing Height.......2 kft agl until 0900. 6 kft agl after 1300. * Transport Winds.....West 10 mph until 1600, then 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...20 percent. .SATURDAY...Partly cloudy with chance of rain. Chance of rain 30 percent. Lows 35-45. Highs 60-70. Min humidities 25-35 percent. Southwest winds 5-10 mph. .SUNDAY...Cooler. Mostly cloudy with rain. Chance of rain 80 percent. Lows 40-50. Highs 45-55. Min humidities 50-60 percent. Northwest winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain. Chance of rain 40 percent. Lows 40-50. Highs 50-60. West winds 10-15 mph. .TUESDAY...Mostly cloudy with chance of rain. Chance of rain 40 percent. Lows 40-50. Highs 50-60. .WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain 20 percent. Lows 35-45. Highs 55-65. $$ MTZ107-161000- Flathead Reservation- 350 AM MDT Thu May 15 2025 .TODAY... * Sky/Weather.........Mostly cloudy. Rain likely. Snow level 6500 feet. * Max Temperature.....60-65 valleys and 40-45 ridges. * Min Humidity........41-51 percent valleys and 71-81 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-15 mph. * Ridge Top............West 10-20 mph. * Mixing Height.......3 kft agl until 0900. 7 kft agl after 1300. * Transport Winds.....West 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...20 percent in areas west of Highway 93...and 70 percent in the Mission Mtns and areas east of Highway 93. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain. Snow level 6500 feet. * Min Temperature.....40-45 valleys and 30-35 ridges. * Max Humidity........78-88 percent valleys and 84-94 percent ridges. * 20-Foot Winds....... * Lower Elevation......Southwest 5-10 mph in the evening becoming downslope/downvalley 2-5 mph. * Ridge Top............West 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 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Chance of rain. Snow level 6500 feet. * Max Temperature.....60-65 valleys and 40-45 ridges. * Min Humidity........40-50 percent valleys and 63-73 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............Southwest 10-15 mph. * Mixing Height.......1-2 kft agl until 0900. 6 kft agl after 1400. * Transport Winds.....Southwest 10 mph until 1700, then west 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...20 percent. .SATURDAY...Mostly cloudy with slight chance of rain. Chance of rain 20 percent. Lows 40-50. Highs 60-70. Min humidities 25-35 percent. Southwest winds 10-15 mph. .SUNDAY...Mostly cloudy with chance of rain. Chance of rain 40 percent. Lows 45-55. Highs 55-65. Min humidities 45-55 percent. Northwest winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain. Chance of rain 30 percent. Lows 40-50. Highs 55-65. West winds 10-15 mph. .TUESDAY...Mostly cloudy with chance of rain. Chance of rain 40 percent. Lows 40-50. Highs 55-65. .WEDNESDAY...Partly cloudy with slight chance of rain. Chance of rain 20 percent. Lows 40-50. Highs 60-70. $$ MTZ109-161000- Bitterroot- 350 AM MDT Thu May 15 2025 .TODAY... * Sky/Weather.........Mostly cloudy. Chance of rain and snow. Snow level 6500 feet. * Max Temperature.....55-60 valleys and 45-50 ridges. * Min Humidity........32-42 percent valleys and 46-56 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-15 mph. * Ridge Top............West 5-15 mph. * Mixing Height.......2 kft agl until 0800. 6 kft agl after 1300. * Transport Winds.....West 15 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. * Min Temperature.....30-40. * Max Humidity........73-83 percent. * 20-Foot Winds....... * Lower Elevation......Northwest 5-10 mph in the evening becoming downslope/downvalley 2-5 mph. * Ridge Top............Northwest 5-15 mph. * Mixing Height.......5 kft agl until 2000. 1-2 kft agl after 2100. * Transport Winds.....Northwest 15 mph until 2200, then variable less than 10 mph. * Chance Lightning....Near 0 percent. * CWR (> 0.10 Inch)...0 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Chance of rain and snow in the morning, then rain showers, snow showers likely and slight chance of thunderstorms in the afternoon. Snow level 6500 feet. * Max Temperature.....55-60 valleys and 45-50 ridges. * Min Humidity........40-50 percent valleys and 57-67 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 0900. 6 kft agl after 1400. * Transport Winds.....West 10 mph until 1700, then 15 mph. * Chance Lightning....20 percent in the Darby, Sula, and West Fork Districts...and 15 percent in areas north of Hamilton. * CWR (> 0.10 Inch)...20 percent. .SATURDAY...Partly cloudy with chance of rain. Chance of rain 30 percent. Lows 35-45. Highs 55-65. Min humidities 30-40 percent. Southwest winds 5-10 mph. .SUNDAY...Colder. Cloudy with rain and snow. Chance of precipitation 90 percent. Lows 40-50. Highs 40-50. Min humidities 50-60 percent. Northwest winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain and snow. Chance of precipitation 30 percent. Lows 35-45. Highs 50-60. Northwest winds 10-15 mph. .TUESDAY...Mostly cloudy with chance of rain and snow. Chance of precipitation 30 percent. Lows 35-45. Highs 50-60. .WEDNESDAY...Partly cloudy with slight chance of rain and snow. Chance of precipitation 20 percent. Lows 35-45. Highs 55-65. $$ MTZ110-111-161000- Deerlodge/West Beaverhead-East Beaverhead- 350 AM MDT Thu May 15 2025 .TODAY... * Sky/Weather.........Mostly cloudy. Patchy dense fog in the morning. Snow likely in the morning. Chance of rain showers. Chance of snow showers and slight chance of thunderstorms in the afternoon. Snow level 7000 feet. * Max Temperature.....50-55 valleys and 40-45 ridges. * Min Humidity........41-51 percent valleys and 49-59 percent ridges. * 20-Foot Winds....... * Lower Elevation......West 5-15 mph. * Ridge Top............West 5-15 mph. * Mixing Height.......1-2 kft agl until 0800. 6 kft agl after 1200. * Transport Winds.....West 15 mph. * Chance Lightning....15 percent in the Deerlodge/West Beaverhead...and 20 percent in the East Beaverhead. * CWR (> 0.10 Inch)...10 percent. .TONIGHT... * Sky/Weather.........Partly cloudy. Slight chance of rain showers, thunderstorms and snow showers. Snow level 7000 feet. * Min Temperature.....25-35. * Max Humidity........88-97 percent valleys and 79-89 percent ridges. * 20-Foot Winds....... * Lower Elevation......Northwest 5-10 mph becoming variable less than 5 mph after midnight. * Ridge Top............Northwest 5-15 mph. * Mixing Height.......5 kft agl until 2000. Below 500 ft to 1 kft agl after 2100. * Transport Winds.....Northwest 15 mph until 2300, then variable less than 10 mph. * Chance Lightning....20 percent. * CWR (> 0.10 Inch)...10 percent. .FRIDAY... * Sky/Weather.........Mostly cloudy. Chance of snow in the morning. Rain showers likely. Snow showers likely and slight chance of thunderstorms in the afternoon. Snow level 7000 feet. * Max Temperature.....50-60 valleys and 40-50 ridges. * Min Humidity........42-52 percent valleys and 53-63 percent ridges. * 20-Foot Winds....... * Lower Elevation......Calm to variable less than 7 mph. * Ridge Top............Southwest 5-10 mph. * Mixing Height.......Below 500 ft to 1 kft agl until 0800, then 3 kft agl until 1000, then 5 kft agl until 1200, then 6 kft agl until 1700, then 5 kft agl. * Transport Winds.....Southwest 10 mph. * Chance Lightning....20 percent. * CWR (> 0.10 Inch)...30 percent. .SATURDAY...Mostly cloudy with chance of rain showers. Chance of showers 50 percent. Lows 35-45. Highs 55-65. Min humidities 30-40 percent. Southwest winds 10-15 mph. .SUNDAY...Cooler. Cloudy with rain showers and slight chance of thunderstorms. Chance of precipitation 80 percent. Lows 35-45. Highs 45-55. Min humidities 45-55 percent. North winds 10-15 mph. .MONDAY...Mostly cloudy with chance of rain and snow. Chance of precipitation 50 percent. Lows 35-45. Highs 50-60. Northwest winds 10-20 mph. .TUESDAY...Partly cloudy with chance of rain showers and snow. Chance of precipitation 30 percent. Lows 35-45. Highs 50-60. .WEDNESDAY...Partly cloudy with slight chance of rain showers. Chance of showers 20 percent. Lows 30-40. Highs 55-65. $$