Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. 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 Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

NA

36°F

2°C

Humidity 29%
Wind Speed NA 11 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill28°F (-2°C)
Last update 12 Feb 02:10 AM MST
Extended Forecast for

St Mary MT

  • Overnight

    Overnight: Partly cloudy, with a low around 26. South southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 41. Southwest wind 13 to 15 mph, with gusts as high as 31 mph.

    High: 41 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: 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 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.

    High: 38 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Slight Chance
    Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. South southwest wind around 11 mph, with gusts as high as 23 mph.
Thursday
Partly sunny, with a high near 41. Southwest wind 13 to 15 mph, with gusts as high as 31 mph.
Thursday Night
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 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.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 25.
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)
2:57 am MST Feb 12, 2026
3am MST Feb 12, 2026-6pm MST Feb 18, 2026
 
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Additional Resources

Radar & Satellite Image

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