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

Hazardous Weather Conditions

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

43°F

6°C

Humidity 43%
Wind Speed NA 3 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 28 Mar 08:10 PM MDT
Extended Forecast for

6 Miles W St Mary MT

Winter Weather Advisory March 29, 08:00pm until March 30, 10:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A 20 percent chance of snow after midnight. Partly cloudy, with a low around 28. West southwest wind around 18 mph, with gusts as high as 28 mph.

    Low: 28 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Snow likely, mainly after 1pm. Partly sunny, with a high near 31. Windy, with a west southwest wind 20 to 25 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 31 °F

    Windy. Chance
    Snow then
    Snow Likely

  • Sunday Night

    Sunday Night: Snow. Widespread blowing snow after 8pm. Low around 20. Windy, with a west southwest wind around 33 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    Low: 20 °F

    Snow and
    Blowing Snow

  • Monday

    Monday: Snow. Widespread blowing snow before 10am. High near 20. Windy, with a west southwest wind 23 to 32 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

    High: 20 °F

    Snow and
    Blowing Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 6. West southwest wind 8 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than one inch possible.

    Low: 6 °F

    Chance Snow
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. Southwest wind 9 to 13 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. Southwest wind 13 to 15 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 35. Southwest wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 35 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Snow Likely

Detailed Forecast

Tonight
A 20 percent chance of snow after midnight. Partly cloudy, with a low around 28. West southwest wind around 18 mph, with gusts as high as 28 mph.
Sunday
Snow likely, mainly after 1pm. Partly sunny, with a high near 31. Windy, with a west southwest wind 20 to 25 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow. Widespread blowing snow after 8pm. Low around 20. Windy, with a west southwest wind around 33 mph, with gusts as high as 47 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Monday
Snow. Widespread blowing snow before 10am. High near 20. Windy, with a west southwest wind 23 to 32 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.
Monday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 6. West southwest wind 8 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than one inch possible.
Tuesday
Mostly sunny, with a high near 26. Southwest wind 9 to 13 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 19. Southwest wind 13 to 15 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 35. Southwest wind 14 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 24.
Thursday
Snow likely. Mostly cloudy, with a high near 29. Breezy.
Thursday Night
Snow likely. Mostly cloudy, with a low around 19. Breezy.
Friday
A chance of snow. Partly sunny, with a high near 29.
Friday Night
A chance of snow. Partly cloudy, with a low around 20. Breezy.
Saturday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W St Mary MT
 48.75°N 113.57°W (Elev. 6909 ft)
Last Update:
8:41 pm MDT Mar 28, 2026
Forecast Valid:
8pm MDT Mar 28, 2026-6pm MDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation