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 >

Current conditions at

STEVI (STVM8)

Lat: 46.55617° N Lon: 114.07435° W Elev: 3205.0 ft.

NA

33°F

1°C

Humidity 100%
Wind Speed SSE 3 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 24 Dec 07:14 AM MST
Detailed forecast for

Missoula/Bitterroot Valleys

Today
Mostly cloudy. Highs in the lower to mid 40s.
Tonight
Rain likely in the evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the lower to mid 30s.
Christmas Day
Mostly cloudy with a 40 percent chance of rain. Patchy fog in the morning. Highs in the mid 40s.
Thursday Night
Mostly cloudy with a 40 percent chance of rain. Lows near 30.
Friday
Rain likely and a slight chance of snow. Chance of precipitation 70 percent. Highs near 40. South winds to 15 mph with gusts to around 30 mph.
Friday Night
Rain and snow likely in the evening, then snow likely after midnight. Chance of precipitation 80 percent. Lows in the mid to upper 20s.
Saturday
Mostly cloudy. A 40 percent chance of snow in the morning. Highs in the lower to mid 30s.
Saturday Night
Partly cloudy in the evening then becoming mostly cloudy. Lows 16 to 20.
Sunday
Mostly cloudy. Highs in the lower to mid 30s.
Sunday Night
Mostly cloudy in the evening then becoming partly cloudy. Lows 17 to 21.
Monday
Partly cloudy. Highs in the mid 30s to lower 40s.
Monday Night
Partly cloudy. Lows in the lower to mid 20s.
Tuesday
Mostly cloudy. Highs in the lower to mid 40s.



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103 AM MST Wed Dec 24 2025
 
 

Additional Resources

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National Digital Forecast Database