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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

49°F

9°C

Humidity 22%
Wind Speed SSW 11 MPH
Barometer NA
Dewpoint 12°F (-11°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 01 Jan 12:11 PM MST
Extended Forecast for

7 Miles S St Mary MT

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 29. Breezy, with a west southwest wind 18 to 23 mph, with gusts as high as 32 mph.

    High: 29 °F

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 24. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    and Breezy

  • Friday

    Friday: Snow likely, mainly after 2pm. Mostly cloudy, with a high near 29. Windy, with a west southwest wind 28 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Snow Likely
    and Windy

  • Friday Night

    Friday Night: A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 27. Windy, with a west southwest wind 23 to 31 mph, with gusts as high as 49 mph.

    Low: 27 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Cloudy
    and Breezy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 30. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Chance Snow
    and Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 28. Windy, with a west southwest wind 22 to 32 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow
    and Windy

  • Sunday

    Sunday: A 40 percent chance of snow. Partly sunny, with a high near 29. Windy, with a west southwest wind around 34 mph, with gusts as high as 44 mph. Little or no snow accumulation expected.

    High: 29 °F

    Chance Snow
    and Windy

  • Sunday Night

    Sunday Night: A slight chance of snow. Mostly cloudy, with a low around 25. Windy, with a west southwest wind 32 to 36 mph, with gusts as high as 44 mph.

    Low: 25 °F

    Slight Chance
    Snow and
    Windy

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 26. Windy.

    High: 26 °F

    Chance Snow
    and Windy

Detailed Forecast

New Year's Day
Mostly cloudy, with a high near 29. Breezy, with a west southwest wind 18 to 23 mph, with gusts as high as 32 mph.
Tonight
A 30 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 24. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 2pm. Mostly cloudy, with a high near 29. Windy, with a west southwest wind 28 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 27. Windy, with a west southwest wind 23 to 31 mph, with gusts as high as 49 mph.
Saturday
A 30 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 30. Breezy, with a west southwest wind 17 to 22 mph, with gusts as high as 31 mph. 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. Windy, with a west southwest wind 22 to 32 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 29. Windy, with a west southwest wind around 34 mph, with gusts as high as 44 mph. Little or no snow accumulation expected.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 25. Windy, with a west southwest wind 32 to 36 mph, with gusts as high as 44 mph.
Monday
A chance of snow. Mostly cloudy, with a high near 26. Windy.
Monday Night
A chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. Windy.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 23. Windy.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 20. Windy.
Wednesday
A chance of snow. Mostly cloudy, with a high near 23. Windy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
Last Update:
3:32 am MST Jan 1, 2026
Forecast Valid:
1pm MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation