National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

36°F

2°C

Humidity 57%
Wind Speed NA 5 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 26 Dec 07:10 AM MST
Extended Forecast for

6 Miles W St Mary MT

Winter Weather Advisory until December 27, 02:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until December 27, 02:00pm

    NOW until 2:00pm Sat

    Winter Weather Advisory

  • Today

    High: 27 °F

    Heavy Snow
    then Heavy
    Snow and
    Windy

  • Tonight

    Tonight: Snow. The snow could be heavy at times. Low around -7. Wind chill values as low as -15. Windy, with a west southwest wind 21 to 30 mph becoming north northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: -7 °F

    Heavy Snow
    and Windy

  • Saturday

    Saturday: Snow likely, mainly before 10am. The snow could be heavy at times. Mostly cloudy and cold, with a temperature falling to around -11 by 4pm. Wind chill values as low as -30. North northeast wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 3 °F⇓

    Heavy Snow
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -9. Wind chill values as low as -25. West southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: -9 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 9. West southwest wind 16 to 21 mph, with gusts as high as 33 mph.

    High: 9 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8. Breezy, with a west southwest wind 22 to 26 mph, with gusts as high as 41 mph.

    Low: 8 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 18. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 41 mph.

    High: 18 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 39 mph.

    Low: 16 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Today
Snow, mainly after 11am. The snow could be heavy at times. High near 27. Windy, with a southwest wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 7 inches possible.
Tonight
Snow. The snow could be heavy at times. Low around -7. Wind chill values as low as -15. Windy, with a west southwest wind 21 to 30 mph becoming north northwest after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Saturday
Snow likely, mainly before 10am. The snow could be heavy at times. Mostly cloudy and cold, with a temperature falling to around -11 by 4pm. Wind chill values as low as -30. North northeast wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Partly cloudy, with a low around -9. Wind chill values as low as -25. West southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 9. West southwest wind 16 to 21 mph, with gusts as high as 33 mph.
Sunday Night
Partly cloudy, with a low around 8. Breezy, with a west southwest wind 22 to 26 mph, with gusts as high as 41 mph.
Monday
Partly sunny, with a high near 18. Breezy, with a west southwest wind 23 to 26 mph, with gusts as high as 41 mph.
Monday Night
Mostly cloudy, with a low around 16. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 39 mph.
Tuesday
Partly sunny, with a high near 24. Breezy.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A slight chance of snow. Mostly cloudy, with a high near 23.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 16.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W St Mary MT
 48.75°N 113.57°W (Elev. 6909 ft)
Last Update:
6:32 am MST Dec 26, 2025
Forecast Valid:
8am MST Dec 26, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation