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

40°F

4°C

Humidity 78%
Wind Speed NA 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 01 Apr 10:10 PM MDT
Extended Forecast for

St Mary MT

Winter Weather Advisory April 2, 06:00am until April 3, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A chance of rain and snow before 2am, then rain likely between 2am and 5am, then rain and snow after 5am. Low around 32. Light south southeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow, becoming all snow after 8am. High near 39. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Rain/Snow
    then Snow

  • Thursday Night

    Thursday Night: Snow, mainly before midnight. Low around 28. West northwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Snow then
    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 44. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. West southwest wind around 10 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 48. West southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. West southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 47. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of rain and snow before 2am, then rain likely between 2am and 5am, then rain and snow after 5am. Low around 32. Light south southeast wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
Rain and snow, becoming all snow after 8am. High near 39. Light and variable wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Snow, mainly before midnight. Low around 28. West northwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Friday
Mostly sunny, with a high near 44. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 31. West southwest wind around 10 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 48. West southwest wind around 11 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 31. West southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 47. Light and variable wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
A slight chance of rain and snow after midnight. Mostly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 54.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Wednesday
A chance of snow. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
9:37 pm MDT Apr 1, 2026
Forecast Valid:
11pm MDT Apr 1, 2026-6pm MDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation