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

35°F

2°C

Humidity 66%
Wind Speed NA 10 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill27°F (-3°C)
Last update 15 Apr 03:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

Winter Weather Advisory until April 16, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until April 16, 12:00pm

    NOW until 12:00pm Thu

    Winter Weather Advisory

  • Overnight

    Low: 25 °F

    Heavy Snow
    and Windy

  • Wednesday

    Wednesday: Snow likely, mainly before 3pm. The snow could be heavy at times. Mostly cloudy, with a high near 29. Windy, with a west southwest wind 23 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of 4 to 8 inches possible.

    High: 29 °F

    Heavy Snow
    and Windy

  • Wednesday Night

    Wednesday Night: Snow likely, mainly after 11pm. Patchy blowing snow. Mostly cloudy, with a low around 11. Wind chill values as low as -5. Breezy, with a west southwest wind 17 to 22 mph becoming north northwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 11 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: Snow, mainly before noon. High near 22. Wind chill values as low as -5. North northwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 22 °F

    Snow then
    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 15. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: A 50 percent chance of snow. Partly sunny, with a high near 27. West northwest wind around 14 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Chance Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20. West southwest wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 34. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 37 mph.

    High: 34 °F

    Sunny then
    Mostly Sunny
    and Breezy

Detailed Forecast

Overnight
Snow likely, mainly after 5am. The snow could be heavy at times. Mostly cloudy, with a low around 25. Windy, with a west southwest wind around 34 mph, with gusts as high as 60 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 3 to 7 inches possible.
Wednesday
Snow likely, mainly before 3pm. The snow could be heavy at times. Mostly cloudy, with a high near 29. Windy, with a west southwest wind 23 to 32 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
Snow likely, mainly after 11pm. Patchy blowing snow. Mostly cloudy, with a low around 11. Wind chill values as low as -5. Breezy, with a west southwest wind 17 to 22 mph becoming north northwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow, mainly before noon. High near 22. Wind chill values as low as -5. North northwest wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 15. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow. Partly sunny, with a high near 27. West northwest wind around 14 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Friday Night
Partly cloudy, with a low around 20. West southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 34. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 37 mph.
Saturday Night
Partly cloudy, with a low around 25. Breezy.
Sunday
Sunny, with a high near 43. Breezy.
Sunday Night
Partly cloudy, with a low around 31. Breezy.
Monday
Mostly sunny, with a high near 46.
Monday Night
A slight chance of snow. Partly cloudy, with a low around 32.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 50.
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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:
12:31 am MDT Apr 15, 2026
Forecast Valid:
4am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation