Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

39°F

4°C

Humidity 22%
Wind Speed S 16 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 12 Feb 09:11 AM MST
Extended Forecast for

St Mary MT

  • Today

    Today: Partly sunny, with a high near 41. Southwest wind around 15 mph, with gusts as high as 31 mph.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 31. Southwest wind 15 to 17 mph, with gusts as high as 34 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 40. West southwest wind 11 to 14 mph, with gusts as high as 29 mph.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after 11pm.  Mostly cloudy, with a low around 30. West southwest wind around 10 mph, with gusts as high as 24 mph.

    Low: 30 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A 40 percent chance of snow.  Partly sunny, with a high near 40. West southwest wind 8 to 13 mph, with gusts as high as 28 mph.  New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 28. West southwest wind 5 to 10 mph, with gusts as high as 24 mph.  New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow.  Partly sunny, with a high near 38. West southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.  New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow.  Mostly cloudy, with a low around 25. Southwest wind 6 to 8 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Washington's Birthday

    Washington's Birthday: A slight chance of snow.  Partly sunny, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Partly sunny, with a high near 41. Southwest wind around 15 mph, with gusts as high as 31 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 31. Southwest wind 15 to 17 mph, with gusts as high as 34 mph.
Friday
Partly sunny, with a high near 40. West southwest wind 11 to 14 mph, with gusts as high as 29 mph.
Friday Night
A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 30. West southwest wind around 10 mph, with gusts as high as 24 mph.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 40. West southwest wind 8 to 13 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Saturday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 28. West southwest wind 5 to 10 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 38. West southwest wind 3 to 8 mph. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 25. Southwest wind 6 to 8 mph.
Washington's Birthday
A slight chance of snow. Partly sunny, with a high near 38.
Monday Night
A chance of snow. Mostly cloudy, with a low around 22.
Tuesday
Snow likely. Mostly cloudy, with a high near 34.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 19.
Wednesday
A chance of snow. Mostly cloudy, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
9:12 am MST Feb 12, 2026
10am MST Feb 12, 2026-6pm MST Feb 18, 2026
 
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Additional Resources

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