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Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Missoula, MT

Weather Forecast Office

NWS Forecast Office Missoula, MT

Weather.gov > Missoula, MT
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Last Map Update: Wed, Dec 24, 2025 at 4:06:45 pm MST

Wintry Mix Christmas Eve - Christmas
Cold Front on Friday
Holiday Travel Planner
Periods of light precipitation in the form of snow at mountain passes, but a wintry mixture in the valleys will be possible Christmas Eve into Christmas Day. Black ice will continue to be an impact during this period.
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A cold front will be pushing through the Northern Rockies on Friday causing snow and breezy west winds. The mountain passes have best opportunity for accumulating snow while the valleys will experiencing a dusting up to 2 inches. Wind gusts up to 35 mph is anticipated with the frontal passage.
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A couple rounds of light precipitation is expected on Christmas bringing snow to mountain passes and a wintry mix of rain/snow/freezing rain in the valleys. This wintry mix during the overnight hours could create slick road conditions. A cold front is expected on Friday causing widespread snow and gusty west winds. Snow showers linger into Saturday with dry conditions expected on Sunday.
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