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

38°F

3°C

Humidity 65%
Wind Speed NA 9 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 15 Apr 10:10 AM MDT
Extended Forecast for

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

  • Today

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: A 50 percent chance of rain. Mostly cloudy, with a low around 18. West southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 25 mph.

    Low: 18 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 35. North wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 35 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 20. North wind around 6 mph becoming light and variable.

    Low: 20 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Partly sunny, with a high near 41. West northwest wind 6 to 8 mph.

    High: 41 °F

    Chance Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain. Partly cloudy, with a low around 25. West southwest wind 6 to 8 mph.

    Low: 25 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain. Sunny, with a high near 48. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.

    High: 48 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain. Partly cloudy, with a low around 33. West southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Today
A 50 percent chance of rain. Mostly cloudy, with a high near 45. Southwest wind 13 to 15 mph, with gusts as high as 32 mph.
Tonight
A 50 percent chance of rain. Mostly cloudy, with a low around 18. West southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 25 mph.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 35. North wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 20. North wind around 6 mph becoming light and variable.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 41. West northwest wind 6 to 8 mph.
Friday Night
A 30 percent chance of rain. Partly cloudy, with a low around 25. West southwest wind 6 to 8 mph.
Saturday
A 30 percent chance of rain. Sunny, with a high near 48. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.
Saturday Night
A chance of rain. Partly cloudy, with a low around 33. West southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Sunday
A chance of rain. Sunny, with a high near 57.
Sunday Night
A chance of rain. Partly cloudy, with a low around 39.
Monday
A chance of rain. Mostly sunny, with a high near 61.
Monday Night
A chance of rain. Mostly clear, with a low around 39.
Tuesday
A chance of rain. Mostly sunny, with a high near 64.
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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:
10:32 am MDT Apr 15, 2026
Forecast Valid:
10am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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