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

Active Spring Like Pattern Across the Country

A frontal boundary will slowly move eastward and clear most of the eastern seaboard by Sunday. Showers and thunderstorms, some severe, will accompany this front alongside the threat of heavy rainfall; These threats may linger along the Gulf Coast states into early next week. Meanwhile, record spring-like warmth is forecast, mainly east of the Mississippi River, this weekend into next week. 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

45°F

7°C

Humidity 60%
Wind Speed NA 16 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 07 Mar 11:10 PM MST
Extended Forecast for

St Mary MT

High Wind Warning March 8, 12:00am until March 9, 12:00am
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning March 8, 12:00am until March 9, 12:00am

    NOW until 12:00am Mon

    High Wind Warning

  • Overnight

    Low: 40 °F

    Rain/Snow and
    Very Windy

  • Sunday

    Sunday: Rain, possibly mixed with snow, becoming all snow after 1pm. High near 46. Windy, with a southwest wind 39 to 44 mph decreasing to 33 to 38 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Rain/Snow and
    Windy

  • Sunday Night

    Sunday Night: Snow, mainly before 11pm. Low around 22. Blustery, with a north wind 20 to 24 mph becoming southwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Snow and
    Blustery then
    Chance Snow

  • Monday

    Monday: Snow. High near 33. Windy, with a west southwest wind 27 to 32 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 33 °F

    Snow and
    Windy

  • Monday Night

    Monday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 16. West southwest wind 7 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    Low: 16 °F

    Chance Snow

  • Tuesday

    Tuesday: A 50 percent chance of snow. Partly sunny, with a high near 30. West southwest wind 7 to 15 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 20. West southwest wind 10 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 37. West southwest wind 11 to 17 mph, with gusts as high as 38 mph.

    High: 37 °F

    Snow Likely

Detailed Forecast

Overnight
A chance of rain before 5am, then rain, possibly mixed with snow. Low around 40. Very windy, with a west southwest wind 41 to 45 mph, with gusts as high as 70 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Rain, possibly mixed with snow, becoming all snow after 1pm. High near 46. Windy, with a southwest wind 39 to 44 mph decreasing to 33 to 38 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow, mainly before 11pm. Low around 22. Blustery, with a north wind 20 to 24 mph becoming southwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow. High near 33. Windy, with a west southwest wind 27 to 32 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 16. West southwest wind 7 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Tuesday
A 50 percent chance of snow. Partly sunny, with a high near 30. West southwest wind 7 to 15 mph, with gusts as high as 32 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 20. West southwest wind 10 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 37. West southwest wind 11 to 17 mph, with gusts as high as 38 mph.
Wednesday Night
Snow. Mostly cloudy, with a low around 32. Breezy.
Thursday
Snow. Cloudy, with a high near 39. Breezy.
Thursday Night
Snow. Cloudy, with a low around 19.
Friday
Snow. Mostly cloudy, with a high near 33.
Friday Night
Snow likely. Mostly cloudy, with a low around 18.
Saturday
Snow likely. Mostly cloudy, with a high near 32.
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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:
11:46 pm MST Mar 7, 2026
Forecast Valid:
12am MST Mar 8, 2026-6pm MDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation