PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

Read More >

Current conditions at

ST. MARY (SRYM8)

Lat: 48.74108°NLon: 113.43289°WElev: 4557.0ft.

NA

27°F

-3°C

Humidity 84%
Wind Speed SSW 18 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill14°F (-10°C)
Last update 03 Dec 05:11 PM MST
Extended Forecast for

St Mary MT

Winter Storm Watch December 5, 05:00am until December 6, 05:00pm
Click here for hazard details and duration
Winter Storm Watch
  • Tonight

    Tonight: A 10 percent chance of snow after 5am.  Patchy blowing snow before 11pm. Mostly cloudy, with a low around 23. Southwest wind 16 to 18 mph, with gusts as high as 37 mph.

    Low: 23 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Thursday

    Thursday: A 30 percent chance of snow after 4pm.  Patchy blowing snow before 2pm. Mostly cloudy, with a high near 34. Southwest wind 15 to 18 mph, with gusts as high as 38 mph.  New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around 24. West southwest wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Slight Chance
    Snow

  • Friday

    Friday: Snow, mainly after 11am.  High near 34. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 34 °F

    Snow

  • Friday Night

    Friday Night: Snow likely.  Mostly cloudy, with a low around 17. West wind 6 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 17 °F

    Snow Likely

  • Saturday

    Saturday: Snow likely, mainly after 11am.  Mostly cloudy, with a high near 35. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 28. West southwest wind 10 to 14 mph, with gusts as high as 30 mph.  New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow, mainly after 11am.  Mostly cloudy, with a high near 40. West southwest wind around 15 mph, with gusts as high as 32 mph.

    High: 40 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow before 11pm, then a chance of rain and snow.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
A 10 percent chance of snow after 5am. Patchy blowing snow before 11pm. Mostly cloudy, with a low around 23. Southwest wind 16 to 18 mph, with gusts as high as 37 mph.
Thursday
A 30 percent chance of snow after 4pm. Patchy blowing snow before 2pm. Mostly cloudy, with a high near 34. Southwest wind 15 to 18 mph, with gusts as high as 38 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 24. West southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Friday
Snow, mainly after 11am. High near 34. West southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday Night
Snow likely. Mostly cloudy, with a low around 17. West wind 6 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 35. West southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28. West southwest wind 10 to 14 mph, with gusts as high as 30 mph. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow, mainly after 11am. Mostly cloudy, with a high near 40. West southwest wind around 15 mph, with gusts as high as 32 mph.
Sunday Night
A chance of snow before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 33.
Monday
A chance of rain and snow before 8am, then a chance of snow between 8am and 11am, then a chance of rain and snow after 11am. Partly sunny, with a high near 42.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 34.
Tuesday
Rain and snow likely. Mostly cloudy, with a high near 44.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 29.
Wednesday
Snow likely. Mostly cloudy, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
3:47 pm MST Dec 3, 2025
5pm MST Dec 3, 2025-6pm MST Dec 10, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database