Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

unknown precip

30°F

-1°C

Humidity 97%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 02 Jan 01:45 AM MST
Extended Forecast for

12 Miles W Marysville MT

Winter Weather Advisory January 2, 02:12am until January 2, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 2, 02:12am until January 2, 12:00pm

    NOW until 12:00pm Fri

    Winter Weather Advisory

  • Overnight

    Low: 26 °F

    Heavy Snow

  • Friday

    Friday: A 50 percent chance of snow, mainly after 10am.  Cloudy, with a high near 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 30 mph.  New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 27. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 26 mph.

    Low: 27 °F

    Cloudy and
    Breezy then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 32. South southwest wind 14 to 17 mph, with gusts as high as 21 mph.

    High: 32 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow.  Mostly cloudy, with a low around 26. Breezy, with a south southwest wind 17 to 22 mph.  New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    and Breezy

  • Sunday

    Sunday: A 40 percent chance of snow, mainly after 11am.  Partly sunny, with a high near 30. Breezy.  New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Sunday Night

    Sunday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 23. Breezy.  New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    and Breezy

  • Monday

    Monday: A chance of snow.  Partly sunny, with a high near 25. Breezy.

    High: 25 °F

    Chance Snow
    and Breezy

Detailed Forecast

Overnight
Snow likely, mainly before 3am. The snow could be heavy at times. Cloudy, with a low around 26. West wind 17 to 20 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 2 inches possible.
Friday
A 50 percent chance of snow, mainly after 10am. Cloudy, with a high near 30. Breezy, with a west wind 17 to 22 mph, with gusts as high as 30 mph. New snow accumulation of 1 to 3 inches possible.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 27. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 26 mph.
Saturday
Mostly sunny, with a high near 32. South southwest wind 14 to 17 mph, with gusts as high as 21 mph.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26. Breezy, with a south southwest wind 17 to 22 mph. New snow accumulation of less than a half inch possible.
Sunday
A 40 percent chance of snow, mainly after 11am. Partly sunny, with a high near 30. Breezy. New snow accumulation of less than a half inch possible.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23. Breezy. New snow accumulation of less than a half inch possible.
Monday
A chance of snow. Partly sunny, with a high near 25. Breezy.
Monday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. Windy.
Tuesday
A chance of snow, mainly after 11am. Mostly cloudy, with a high near 24. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 21. Windy.
Wednesday
Snow likely. Mostly cloudy, with a high near 23. Breezy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 14. Breezy.
Thursday
A chance of snow. Mostly cloudy, with a high near 17. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Marysville MT
 46.77°N 112.54°W (Elev. 8199 ft)
1:02 am MST Jan 2, 2026
2am MST Jan 2, 2026-6pm MST Jan 8, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database