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

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

33°F

1°C

Humidity 63%
Wind Speed NA 1 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 11 Apr 02:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. West southwest wind around 8 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain after noon. Partly sunny, with a high near 44. West southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before 4am, then a chance of snow showers. Mostly cloudy, with a low around 30. West wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: A 50 percent chance of snow showers. Mostly cloudy, with a high near 35. West wind around 11 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 27. East northeast wind 7 to 10 mph becoming west after midnight. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Chance Snow

  • Monday

    Monday: Snow likely, mainly after noon. Mostly cloudy, with a high near 38. West southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Snow Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 28. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 43 mph. Little or no snow accumulation expected.

    Low: 28 °F

    Breezy.
    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 31. Windy, with a west southwest wind 29 to 38 mph, with gusts as high as 60 mph.

    High: 31 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: A chance of snow after midnight. Mostly cloudy, with a low around 25. Windy.

    Low: 25 °F

    Windy. Mostly
    Cloudy then
    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. West southwest wind around 8 mph.
Saturday
A 50 percent chance of rain after noon. Partly sunny, with a high near 44. West southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Saturday Night
A chance of rain and snow showers before 4am, then a chance of snow showers. Mostly cloudy, with a low around 30. West wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 35. West wind around 11 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 27. East northeast wind 7 to 10 mph becoming west after midnight. New snow accumulation of less than one inch possible.
Monday
Snow likely, mainly after noon. Mostly cloudy, with a high near 38. West southwest wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 28. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 43 mph. Little or no snow accumulation expected.
Tuesday
Partly sunny, with a high near 31. Windy, with a west southwest wind 29 to 38 mph, with gusts as high as 60 mph.
Tuesday Night
A chance of snow after midnight. Mostly cloudy, with a low around 25. Windy.
Wednesday
Snow likely. Mostly cloudy, with a high near 29. Windy.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 15. Windy.
Thursday
Snow likely. Mostly cloudy, with a high near 24. Blustery.
Thursday Night
A chance of snow. Partly cloudy, with a low around 15. Breezy.
Friday
A chance of snow. Mostly sunny, with a high near 30. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
12:32 am MDT Apr 11, 2026
Forecast Valid:
2am MDT Apr 11, 2026-6pm MDT Apr 17, 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