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

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

ST. MARY (SRYM8)

Lat: 48.74108°NLon: 113.43289°WElev: 4557.0ft.

NA

40°F

4°C

Humidity 64%
Wind Speed SSW 14 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 02 Jan 02:11 PM MST
Extended Forecast for

7 Miles S St Mary MT

  • Tonight

    Tonight: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 25. Breezy, with a west wind 23 to 28 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.

    Low: 25 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance Snow

  • Saturday

    Saturday: A slight chance of snow before 2pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 31. Breezy, with a southwest wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 20%.

    High: 31 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 28. Windy, with a southwest wind 28 to 33 mph, with gusts as high as 43 mph. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    and Windy

  • Sunday

    Sunday: A 50 percent chance of snow. Partly sunny, with a high near 28. Windy, with a west southwest wind around 37 mph, with gusts as high as 50 mph. New snow accumulation of 1 to 3 inches possible.

    High: 28 °F

    Chance Snow
    and Windy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. Windy, with a west southwest wind 34 to 39 mph, with gusts as high as 49 mph. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    and Windy

  • Monday

    Monday: A 40 percent chance of snow. Partly sunny, with a high near 23. Windy, with a west southwest wind 31 to 33 mph, with gusts as high as 43 mph. New snow accumulation of less than one inch possible.

    High: 23 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy, with a west southwest wind 32 to 41 mph, with gusts as high as 55 mph.

    Low: 18 °F

    Windy. Slight
    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A chance of snow after 11am. Mostly cloudy, with a high near 20. Very windy, with a west southwest wind 43 to 45 mph, with gusts as high as 60 mph.

    High: 20 °F

    Chance Snow
    and Very
    Windy

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 18. Very windy.

    Low: 18 °F

    Chance Snow
    and Very
    Windy

Detailed Forecast

Tonight
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 25. Breezy, with a west wind 23 to 28 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.
Saturday
A slight chance of snow before 2pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 31. Breezy, with a southwest wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 20%.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28. Windy, with a southwest wind 28 to 33 mph, with gusts as high as 43 mph. New snow accumulation of less than a half inch possible.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 28. Windy, with a west southwest wind around 37 mph, with gusts as high as 50 mph. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. Windy, with a west southwest wind 34 to 39 mph, with gusts as high as 49 mph. New snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 23. Windy, with a west southwest wind 31 to 33 mph, with gusts as high as 43 mph. New snow accumulation of less than one inch possible.
Monday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. Windy, with a west southwest wind 32 to 41 mph, with gusts as high as 55 mph.
Tuesday
A chance of snow after 11am. Mostly cloudy, with a high near 20. Very windy, with a west southwest wind 43 to 45 mph, with gusts as high as 60 mph.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 18. Very windy.
Wednesday
A chance of snow. Partly sunny, with a high near 20. Windy.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 13. Windy.
Thursday
A slight chance of snow. Partly sunny, with a high near 16. Breezy.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 10. Breezy.
Friday
Partly sunny, with a high near 16. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
Last Update:
1:22 pm MST Jan 2, 2026
Forecast Valid:
3pm MST Jan 2, 2026-6pm MST Jan 9, 2026
 
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