Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

NA

32°F

0°C

Humidity 60%
Wind Speed NA 14 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill22°F (-6°C)
Last update 29 Dec 04:10 PM MST
Extended Forecast for

5 Miles WSW St Mary MT

  • Tonight

    Tonight: Patchy blowing snow. Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Wind chill values as low as zero. Windy, with a west wind 29 to 34 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 55 mph.

    Low: 19 °F

    Patchy
    Blowing Snow
    and Windy

  • Tuesday

    Tuesday: Patchy blowing snow before 11am. Mostly sunny, with a high near 28. Breezy, with a west wind 20 to 25 mph, with gusts as high as 39 mph.

    High: 28 °F

    Patchy
    Blowing Snow
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 25. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 40 mph.

    Low: 25 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 30. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 37 mph.

    High: 30 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. West southwest wind 18 to 21 mph, with gusts as high as 32 mph.

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 30. West southwest wind 15 to 18 mph, with gusts as high as 31 mph.

    High: 30 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25. West southwest wind 17 to 20 mph, with gusts as high as 33 mph.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of snow after 11am.  Partly sunny, with a high near 29. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 38 mph.

    High: 29 °F

    Slight Chance
    Snow and
    Breezy

  • Friday Night

    Friday Night: A chance of snow.  Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Chance Snow
    and Breezy

Detailed Forecast

Tonight
Patchy blowing snow. Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Wind chill values as low as zero. Windy, with a west wind 29 to 34 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 55 mph.
Tuesday
Patchy blowing snow before 11am. Mostly sunny, with a high near 28. Breezy, with a west wind 20 to 25 mph, with gusts as high as 39 mph.
Tuesday Night
Mostly cloudy, with a low around 25. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 40 mph.
Wednesday
Mostly sunny, with a high near 30. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 37 mph.
Wednesday Night
Mostly cloudy, with a low around 24. West southwest wind 18 to 21 mph, with gusts as high as 32 mph.
New Year's Day
Partly sunny, with a high near 30. West southwest wind 15 to 18 mph, with gusts as high as 31 mph.
Thursday Night
Mostly cloudy, with a low around 25. West southwest wind 17 to 20 mph, with gusts as high as 33 mph.
Friday
A slight chance of snow after 11am. Partly sunny, with a high near 29. Breezy, with a west southwest wind 20 to 23 mph, with gusts as high as 38 mph.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25. Breezy.
Saturday
A chance of snow. Mostly cloudy, with a high near 28.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 24.
Sunday
A slight chance of snow. Partly sunny, with a high near 27.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 22.
Monday
A slight chance of snow. Partly sunny, with a high near 28. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
4:07 pm MST Dec 29, 2025
4pm MST Dec 29, 2025-6pm MST Jan 5, 2026
 
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