National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

STEVI (STVM8)

Lat: 46.55617°NLon: 114.07435°WElev: 3205.0ft.

NA

34°F

1°C

Humidity 100%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 25 Dec 08:14 PM MST
Extended Forecast for

20 Miles S Clinton MT

Winter Weather Advisory December 26, 05:00am until December 27, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Snow likely, mainly after 3am. Patchy blowing snow before 2am. Mostly cloudy, with a low around 25. Southwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow, mainly before 2pm. Areas of blowing snow after 8am. High near 26. Breezy, with a south southwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 26 °F

    Snow and
    Areas Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly after 11pm. Widespread blowing snow. Low around 12. Wind chill values as low as -9. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 12 °F

    Snow and
    Blowing Snow

  • Saturday

    Saturday: Snow. Widespread blowing snow, mainly before 11am. High near 13. Wind chill values as low as -9. Windy, with a west wind 26 to 31 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 13 °F

    Snow and
    Blowing Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 2. West wind 10 to 13 mph.

    Low: 2 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 13.

    High: 13 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 3am. Patchy blowing snow before 2am. Mostly cloudy, with a low around 25. Southwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Friday
Snow, mainly before 2pm. Areas of blowing snow after 8am. High near 26. Breezy, with a south southwest wind 17 to 22 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
Snow, mainly after 11pm. Widespread blowing snow. Low around 12. Wind chill values as low as -9. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday
Snow. Widespread blowing snow, mainly before 11am. High near 13. Wind chill values as low as -9. Windy, with a west wind 26 to 31 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Partly cloudy, with a low around 2. West wind 10 to 13 mph.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Partly sunny, with a high near 22.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
A slight chance of snow. Partly sunny, with a high near 31.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
20 Miles S Clinton MT
 46.48°N 113.67°W (Elev. 7799 ft)
Last Update:
1:01 pm MST Dec 25, 2025
Forecast Valid:
8pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation