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

Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along the Northeastern Seaboard. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Hazardous Weather Conditions

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

34°F

1°C

Humidity 79%
Wind Speed NA 5 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 23 Feb 03:10 PM MST
Extended Forecast for

St Mary MT

High Wind Watch February 25, 02:00am until February 27, 09:00am
Winter Weather Advisory February 23, 03:59pm until February 24, 11:00am
Click here for hazard details and duration
High Wind Watch
Winter Weather Advisory
  •  
    Winter Weather Advisory February 23, 03:59pm until February 24, 11:00am

    NOW until 11:00am Tue

    Winter Weather Advisory

  • This Afternoon

    High: 42 °F

    Snow

  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 7pm. Mostly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 34 mph. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Southwest wind 9 to 11 mph, with gusts as high as 24 mph.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27. West southwest wind 13 to 17 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow. Partly sunny, with a high near 36. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 29. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow
    and Breezy

  • Thursday

    Thursday: A 30 percent chance of snow. Partly sunny, with a high near 37. Windy, with a west southwest wind 25 to 34 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    and Windy

  • Thursday Night

    Thursday Night: Snow likely, mainly after 11pm. Mostly cloudy, with a low around 23. Windy, with a west southwest wind 28 to 33 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 70 mph.

    Low: 23 °F

    Snow Likely
    and Windy

Detailed Forecast

This Afternoon
Snow. High near 42. Southwest wind around 21 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A 30 percent chance of snow, mainly before 7pm. Mostly cloudy, with a low around 26. West southwest wind 10 to 15 mph, with gusts as high as 34 mph. New snow accumulation of less than one inch possible.
Tuesday
Mostly sunny, with a high near 38. Southwest wind 9 to 11 mph, with gusts as high as 24 mph.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27. West southwest wind 13 to 17 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 30 percent chance of snow. Partly sunny, with a high near 36. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 29. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 55 mph. New snow accumulation of less than a half inch possible.
Thursday
A 30 percent chance of snow. Partly sunny, with a high near 37. Windy, with a west southwest wind 25 to 34 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Snow likely, mainly after 11pm. Mostly cloudy, with a low around 23. Windy, with a west southwest wind 28 to 33 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 70 mph.
Friday
Snow. Mostly cloudy, with a high near 31.
Friday Night
Snow. Mostly cloudy, with a low around 4.
Saturday
A chance of snow. Partly sunny, with a high near 25.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 13.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
A slight chance of snow. Partly cloudy, with a low around 20.
Monday
A slight chance of snow. Mostly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
3:22 pm MST Feb 23, 2026
Forecast Valid:
3pm MST Feb 23, 2026-6pm MST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation