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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Sieben I-15 MP 216 (MTSBN)

Lat: 46.88748267°NLon: 112.1111196°WElev: 4199.0ft.

NA

39°F

4°C

Humidity 55%
Wind Speed WSW 4 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 01 Jan 03:45 PM MST
Extended Forecast for

8 Miles WSW Marysville MT

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 11pm. Patchy fog between midnight and 2am. Otherwise, cloudy, with a low around 28. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    and Patchy
    Fog

  • Friday

    Friday: A chance of snow, mixing with rain after 1pm, then gradually ending. Mostly cloudy, with a high near 35. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 36. South southwest wind around 10 mph, with gusts as high as 21 mph.

    High: 36 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 28. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Mostly sunny, with a high near 35. Southwest wind around 15 mph, with gusts as high as 29 mph.

    High: 35 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 27. Southwest wind 11 to 13 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Monday

    Monday: A chance of snow. Partly sunny, with a high near 33. West southwest wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly after 11pm. Patchy fog between midnight and 2am. Otherwise, cloudy, with a low around 28. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Total nighttime snow accumulation of less than a half inch possible.
Friday
A chance of snow, mixing with rain after 1pm, then gradually ending. Mostly cloudy, with a high near 35. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 28. Southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 36. South southwest wind around 10 mph, with gusts as high as 21 mph.
Saturday Night
A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 28. South southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 35. Southwest wind around 15 mph, with gusts as high as 29 mph.
Sunday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 27. Southwest wind 11 to 13 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Monday
A chance of snow. Partly sunny, with a high near 33. West southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Monday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 24.
Tuesday
A slight chance of snow. Partly sunny, with a high near 28.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 25.
Wednesday
A chance of snow. Partly sunny, with a high near 28.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 18.
Thursday
A chance of snow. Partly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WSW Marysville MT
 46.72°N 112.44°W (Elev. 6440 ft)
Last Update:
3:53 pm MST Jan 1, 2026
Forecast Valid:
4pm MST Jan 1, 2026-6pm MST Jan 8, 2026
 
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