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

46°F

8°C

Humidity 19%
Wind Speed NA 7 MPH
Barometer NA
Dewpoint 6°F (-14°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 28 Mar 07:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

  • Today

    Today: Mostly sunny, with a high near 36. West southwest wind 14 to 20 mph, with gusts as high as 36 mph.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 24. West southwest wind 11 to 17 mph, with gusts as high as 33 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow, mainly after noon. Partly sunny, with a high near 31. Breezy, with a west southwest wind 15 to 20 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 43 mph. New snow accumulation of around an inch possible.

    High: 31 °F

    Chance Snow
    and Breezy

  • Sunday Night

    Sunday Night: Snow. Low around 17. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    Low: 17 °F

    Snow and
    Breezy

  • Monday

    Monday: Snow. High near 20. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 20 °F

    Snow and
    Breezy

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 5. West southwest wind 8 to 17 mph, with gusts as high as 31 mph. New snow accumulation of less than one inch possible.

    Low: 5 °F

    Chance Snow
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. West southwest wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. Southwest wind 15 to 18 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow after noon. Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 36. West southwest wind 14 to 20 mph, with gusts as high as 36 mph.
Tonight
Partly cloudy, with a low around 24. West southwest wind 11 to 17 mph, with gusts as high as 33 mph.
Sunday
A 40 percent chance of snow, mainly after noon. Partly sunny, with a high near 31. Breezy, with a west southwest wind 15 to 20 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 43 mph. New snow accumulation of around an inch possible.
Sunday Night
Snow. Low around 17. Breezy, with a west southwest wind 23 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow. High near 20. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 5. West southwest wind 8 to 17 mph, with gusts as high as 31 mph. New snow accumulation of less than one inch possible.
Tuesday
Mostly sunny, with a high near 26. West southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 17. Southwest wind 15 to 18 mph, with gusts as high as 26 mph.
Wednesday
A chance of snow after noon. Partly sunny, with a high near 34.
Wednesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 23.
Thursday
Snow likely. Mostly cloudy, with a high near 28. Windy.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 17. Breezy.
Friday
A chance of snow. Partly sunny, with a high near 29. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
3:17 am MDT Mar 28, 2026
Forecast Valid:
8am MDT Mar 28, 2026-6pm MDT Apr 3, 2026
 
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