FPUS55 KMSO 211823 ZFPMSO Zone Forecast Product National Weather Service Missoula MT 1223 PM MDT Sat Mar 21 2026 MTZ001-221000- Kootenai/Cabinet Region- Including the cities of Libby and Eureka 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. A 20 percent chance of rain early in the evening. Lows in the mid 20s to lower 30s. Southwest winds to 15 mph with gusts to around 30 mph in the evening. .SUNDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s to lower 40s. .TUESDAY...A chance of rain and snow in the morning, then rain likely in the afternoon. Chance of precipitation near 100 percent. Highs in the upper 40s to mid 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 90 percent. Lows in the 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a chance of rain. A chance of snow in the morning. Chance of precipitation 50 percent. Highs in the upper 40s to mid 50s. .WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A chance of snow. A chance of rain. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s. .THURSDAY...Partly cloudy with a slight chance of snow. Slight chance of rain in the afternoon. Chance of precipitation 20 percent. Highs in the mid 40s to lower 50s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s to lower 30s. .FRIDAY...Mostly sunny. Highs in the 50s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .SATURDAY...Mostly sunny. Highs in the mid 50s to lower 60s. $$ MTZ002-221000- West Glacier Region- Including the city of Swan Lake 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly cloudy early in the evening then becoming partly cloudy. A 20 percent chance of rain and snow early in the evening. Lows in the mid 20s to lower 30s. Southwest winds 15 to 25 mph with gusts to around 35 mph. .SUNDAY...Sunny. Highs in the upper 30s to mid 40s. Southwest winds 15 to 25 mph with gusts to around 35 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the 20s to lower 30s. Southwest winds 15 to 20 mph with gusts to around 30 mph. .MONDAY...Mostly cloudy in the morning then clearing. Highs in the mid 40s to lower 50s. Southwest winds to 15 mph. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s. Southwest winds to 15 mph. .TUESDAY...A chance of rain and snow in the morning, then rain and snow likely in the afternoon. Chance of precipitation 90 percent. Highs in the 40s. .TUESDAY NIGHT...Rain and snow likely in the evening, then chance of valley rain with mountain snow likely after midnight. Chance of precipitation 90 percent. Lows in the 30s. .WEDNESDAY...Snow likely. Rain likely in the morning, then a chance of rain in the afternoon. Chance of precipitation 70 percent. Highs in the 40s. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain and snow. Lows in the mid 20s to lower 30s. .THURSDAY...Mostly cloudy with a 40 percent chance of snow. Highs in the upper 30s to mid 40s. .THURSDAY NIGHT...Mostly clear. A 20 percent chance of snow in the evening. Lows in the 20s. .FRIDAY...Mostly sunny. Highs in the 40s. .FRIDAY NIGHT...Mostly clear. Lows in the 20s. .SATURDAY...Mostly sunny. Highs in the upper 40s to mid 50s. $$ MTZ003-221000- Flathead/Mission Valleys- Including the cities of Kalispell, Polson, and St. Ignatius 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Partly cloudy. Lows in the upper 20s to mid 30s. Southwest winds to 15 mph with gusts to around 35 mph in the evening. .SUNDAY...Mostly sunny. Highs in the upper 40s to mid 50s. Southwest winds to 15 mph. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 20s to lower 30s. South winds to 15 mph. .MONDAY...Partly cloudy. Highs in the 50s. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s. .TUESDAY...A chance of rain in the morning, then rain likely in the afternoon. Chance of rain 90 percent. Highs in the upper 40s to mid 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 80 percent. Lows in the mid 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s to mid 50s. .WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. A 30 percent chance of rain and snow. Lows in the upper 20s to mid 30s. .THURSDAY...Partly cloudy. A 20 percent chance of snow in the morning. Highs in the mid 40s to lower 50s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s to lower 30s. .FRIDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .SATURDAY...Partly cloudy. Highs in the 50s to lower 60s. $$ MTZ004-221000- Lower Clark Fork Region- Including the cities of Noxon, Thompson Falls, and Superior 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s to lower 30s. West winds 15 to 20 mph with gusts to around 40 mph in the evening. .SUNDAY...Mostly sunny. Highs in the mid 40s to lower 50s. Southwest winds to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 20s to mid 30s. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s to lower 40s. .TUESDAY...A chance of rain and snow in the morning, then rain likely in the afternoon. Chance of precipitation 90 percent. Highs in the upper 40s to mid 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 90 percent. Lows in the mid 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a chance of rain. A chance of snow in the morning. Chance of precipitation 50 percent. Highs in the upper 40s to mid 50s. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain and snow. Lows in the mid 20s to lower 30s. .THURSDAY...Partly cloudy. Highs in the 40s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s to lower 30s. .FRIDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .SATURDAY...Mostly sunny. Highs in the mid 50s to lower 60s. $$ MTZ005-221000- Missoula/Bitterroot Valleys- Including the cities of Hamilton and Darby 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows near 30. West winds to 15 mph with gusts to around 30 mph in the evening. .SUNDAY...Mostly sunny. Highs in the lower to mid 50s. .SUNDAY NIGHT...Partly cloudy. Lows near 30. .MONDAY...Partly cloudy. Highs near 60. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s to lower 40s. .TUESDAY...Slight chance of rain in the morning, then rain likely in the afternoon. Chance of rain 60 percent. Highs near 60. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 60 percent. Lows near 40. .WEDNESDAY...Mostly cloudy with a 50 percent chance of rain. Highs in the 50s. .WEDNESDAY NIGHT...Mostly cloudy. A 20 percent chance of rain and snow in the evening. Lows in the lower to mid 30s. .THURSDAY...Partly cloudy. Highs in the mid 40s to lower 50s. .THURSDAY NIGHT...Mostly clear. Lows in the mid to upper 20s. .FRIDAY...Mostly sunny. Highs in the 50s. .FRIDAY NIGHT...Mostly clear. Lows near 30. .SATURDAY...Partly cloudy. Highs in the lower to mid 60s. $$ MTZ006-221000- Bitterroot/Sapphire Mountains- Including the city of Sula 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s to lower 30s. West winds 15 to 20 mph with gusts to around 40 mph in the evening. .SUNDAY...Mostly sunny. Highs in the mid 40s to lower 50s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. South winds to 15 mph. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s to lower 40s. Southwest winds to 15 mph. .TUESDAY...A chance of rain and a slight chance of snow in the morning, then rain likely in the afternoon. Chance of precipitation 80 percent. Highs in the 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 80 percent. Lows in the mid 30s to lower 40s. .WEDNESDAY...A chance of rain. Snow likely in the morning. Chance of precipitation 70 percent. Highs in the 50s. .WEDNESDAY NIGHT...Mostly cloudy with a chance of snow. Slight chance of rain in the evening. Chance of precipitation 50 percent. Lows in the mid 20s to lower 30s. .THURSDAY...Partly cloudy. Highs in the 40s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s. .FRIDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .SATURDAY...Partly cloudy. Highs in the mid 50s to lower 60s. $$ MTZ007-221000- Butte/Blackfoot Region- Including the cities of Anaconda, Deer Lodge, and Drummond 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the 20s to lower 30s. West winds 15 to 25 mph with gusts to around 40 mph in the evening. .SUNDAY...Mostly sunny. Highs in the mid 40s to lower 50s. West winds to 15 mph with gusts to around 30 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. West winds to 15 mph. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. Southwest winds to 15 mph. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s to lower 40s. West winds to 15 mph. .TUESDAY...Mostly cloudy. A 40 percent chance of rain in the afternoon. Highs in the 50s to lower 60s. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain. Lows in the mid 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a 40 percent chance of rain. Highs in the 50s. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of snow. Slight chance of rain in the evening. Chance of precipitation 20 percent. Lows in the mid 20s to lower 30s. .THURSDAY...Mostly sunny. Highs in the 40s. .THURSDAY NIGHT...Mostly clear. Lows 19 to 26. .FRIDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .SATURDAY...Partly cloudy. Highs in the mid 50s to lower 60s. $$ MTZ043-221000- Potomac/Seeley Lake Region- Including the cities of East Missoula, Seeley Lake, and Clinton 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s to lower 30s. West winds 15 to 25 mph with gusts to around 35 mph in the evening. .SUNDAY...Mostly sunny. Highs in the 40s to lower 50s. West winds to 15 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. West winds to 15 mph. .MONDAY...Partly cloudy. Highs in the 50s. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s to lower 40s. .TUESDAY...A chance of snow and a slight chance of rain in the morning, then rain likely in the afternoon. Chance of precipitation 70 percent. Highs in the upper 40s to mid 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the mid 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a 50 percent chance of rain. Highs in the mid 40s to lower 50s. .WEDNESDAY NIGHT...Mostly cloudy. A chance of rain and snow in the evening, then slight chance of snow after midnight. Chance of precipitation 30 percent. Lows in the mid 20s to lower 30s. .THURSDAY...Mostly sunny. Highs in the upper 30s to mid 40s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s. .FRIDAY...Mostly sunny. Highs in the mid 40s to lower 50s. .FRIDAY NIGHT...Mostly clear. Lows in the 20s to lower 30s. .SATURDAY...Mostly sunny. Highs in the 50s. $$ IDZ009-221000- Western Lemhi County- Including the city of Shoup 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s to mid 30s. West winds to 15 mph with gusts to around 30 mph in the evening. .SUNDAY...Mostly sunny. Highs in the 50s. .SUNDAY NIGHT...Partly cloudy. Lows in the 30s. .MONDAY...Partly cloudy. Highs in the mid 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 30s to mid 40s. .TUESDAY...Mostly cloudy. A 40 percent chance of rain in the afternoon. Highs in the mid 50s to lower 60s. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain. Lows in the 40s. .WEDNESDAY...Mostly cloudy with a 30 percent chance of rain. Highs in the mid 50s to lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain and snow in the evening, then partly cloudy after midnight. Lows in the 30s. .THURSDAY...Partly cloudy. Highs in the upper 40s to mid 50s. .THURSDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .FRIDAY...Partly cloudy. Highs in the 50s to lower 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the 30s. .SATURDAY...Partly cloudy. Highs in the upper 50s to mid 60s. $$ IDZ010-221000- Eastern Lemhi County- Including the cities of Salmon and Leadore 1223 PM MDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s to mid 30s. Windy with northwest winds 20 to 30 mph with gusts to around 45 mph in the evening. .SUNDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .SUNDAY NIGHT...Partly cloudy. Lows in the 30s. .MONDAY...Partly cloudy. Highs in the mid 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the upper 30s to mid 40s. Southwest winds to 15 mph. .TUESDAY...Mostly cloudy with a 20 percent chance of rain. Highs in the mid 50s to lower 60s. .TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s to mid 40s. .WEDNESDAY...Mostly cloudy with a 50 percent chance of rain. Highs in the mid 50s to lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain and snow in the evening, then partly cloudy with a slight chance of snow after midnight. Chance of precipitation 40 percent. Lows in the upper 20s to mid 30s. .THURSDAY...Partly cloudy. Highs in the mid 40s to lower 50s. .THURSDAY NIGHT...Partly cloudy. Lows in the mid 20s to lower 30s. .FRIDAY...Partly cloudy. Highs in the 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the upper 20s to mid 30s. .SATURDAY...Partly cloudy. Highs in the mid 50s to lower 60s. $$ IDZ005-221000- Northern Clearwater Mountains- Including the cities of Pierce and Elk River 1123 AM PDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .SUNDAY...Mostly sunny. Highs in the upper 40s to mid 50s. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 20s to lower 30s. .MONDAY...Mostly cloudy. Highs in the 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 30s to lower 40s. .TUESDAY...A chance of rain in the morning, then rain likely in the afternoon. Chance of rain 90 percent. Highs in the 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 80 percent. Lows in the 30s to lower 40s. .WEDNESDAY...Rain likely. Chance of rain 70 percent. Highs in the upper 40s to mid 50s. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain and snow. Lows in the mid 20s to lower 30s. .THURSDAY...Partly cloudy. Highs in the 40s to lower 50s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s. .FRIDAY...Mostly sunny. Highs in the 50s. .FRIDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .SATURDAY...Mostly sunny. Highs in the mid 50s to lower 60s. $$ IDZ006-221000- Southern Clearwater Mountains- Including the cities of Powell, Elk City, and Dixie 1123 AM PDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the lower 20s to mid 30s. West winds to 15 mph in the evening. .SUNDAY...Mostly sunny. Highs in the 40s to lower 50s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s to upper 30s. .MONDAY...Partly cloudy. Highs in the 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the 30s to mid 40s. .TUESDAY...A chance of rain in the morning, then rain likely in the afternoon. Chance of rain 80 percent. Highs in the upper 40s to mid 50s. .TUESDAY NIGHT...Rain likely. Chance of rain 80 percent. Lows in the 30s to mid 40s. .WEDNESDAY...Rain likely. Chance of rain 70 percent. Highs in the 40s to mid 50s. .WEDNESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain and snow. Lows in the upper 20s to mid 30s. .THURSDAY...Partly cloudy. Highs in the 40s. .THURSDAY NIGHT...Mostly clear. Lows in the 20s to lower 30s. .FRIDAY...Mostly sunny. Highs in the 40s to upper 50s. .FRIDAY NIGHT...Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 20s to mid 30s. .SATURDAY...Partly cloudy. Highs in the 50s to lower 60s. $$ IDZ007-221000- Orofino/Grangeville Region- Including the city of Kooskia 1123 AM PDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the upper 20s to mid 30s. West winds 15 to 20 mph with gusts to around 40 mph mainly south of Highway 12 in the evening. .SUNDAY...Mostly sunny. Highs in the 50s. .SUNDAY NIGHT...Partly cloudy in the evening then becoming mostly cloudy. Lows in the 30s. .MONDAY...Mostly cloudy. Highs in the mid 50s to lower 60s. .MONDAY NIGHT...Mostly cloudy. Lows in the 40s. .TUESDAY...A chance of rain in the morning, then rain likely in the afternoon. Chance of rain 90 percent. Highs in the 50s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the upper 30s to mid 40s. .WEDNESDAY...Rain likely. Chance of rain 70 percent. Highs in the 50s. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain in the evening, then partly cloudy with a slight chance of rain and snow after midnight. Chance of precipitation 40 percent. Lows in the 30s. .THURSDAY...Partly cloudy. Highs in the upper 40s to mid 50s. .THURSDAY NIGHT...Mostly clear. Lows in the upper 20s to mid 30s. .FRIDAY...Mostly sunny. Highs in the 50s. .FRIDAY NIGHT...Partly cloudy. Lows in the 30s. .SATURDAY...Partly cloudy. Highs in the upper 50s to mid 60s. $$ IDZ008-221000- Lower Hells Canyon/Salmon River Region- Including the cities of Riggins and White Bird 1123 AM PDT Sat Mar 21 2026 .TONIGHT...Mostly clear. Lows in the 30s. North winds 15 to 20 mph with gusts to around 45 mph in the evening. .SUNDAY...Mostly sunny. Highs in the 50s to lower 60s. .SUNDAY NIGHT...Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 30s to lower 40s. .MONDAY...Partly cloudy. Highs in the upper 50s to lower 70s. .MONDAY NIGHT...Mostly cloudy. Lows in the mid 40s to lower 50s. South winds to 15 mph. .TUESDAY...Rain likely. Chance of rain 80 percent. Highs in the 50s to mid 60s. .TUESDAY NIGHT...Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the 40s to lower 50s. .WEDNESDAY...Rain likely in the morning, then a chance of rain in the afternoon. Chance of rain 60 percent. Highs in the 50s to mid 60s. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the 30s. .THURSDAY...Mostly sunny. Highs in the 40s to upper 50s. .THURSDAY NIGHT...Mostly clear. Lows in the 30s. .FRIDAY...Mostly sunny. Highs in the 50s to mid 60s. .FRIDAY NIGHT...Partly cloudy. Lows in the mid 30s to lower 40s. .SATURDAY...Partly cloudy. Highs in the 60s to lower 70s. $$