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

Atmospheric River Continues Areas of Heavy Rain and Snow for California This Weekend

An atmospheric river will continue to bring gusty winds, moderate to heavy rainfall, and potential flooding to southern California and the southern Great Basin through Sunday. Periods of heavy snow will continue as well above 7,000 feet over the Sierra Nevada mountains associated with this atmospheric river. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

48°F

9°C

Humidity 64%
Wind Speed SW 17 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 15 Nov 01:11 PM MST
Extended Forecast for

6 Miles SSE St Mary MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 35. Breezy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.

    High: 35 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Breezy, with a west southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 40. South southwest wind 6 to 8 mph.

    High: 40 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain and snow, mainly after 11pm. Mostly cloudy, with a low around 35. West southwest wind 6 to 14 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow

  • Monday

    Monday: A chance of rain and snow. Mostly cloudy, with a high near 37. West southwest wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Rain and snow likely, becoming all snow after 1am. Cloudy, with a low around 30. West wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of snow. Mostly cloudy, with a high near 31. West southwest wind 11 to 14 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 25. West southwest wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 25 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 11am. Partly sunny, with a high near 28.

    High: 28 °F

    Chance Snow
    then Partly
    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 35. Breezy, with a west wind 22 to 25 mph, with gusts as high as 38 mph.
Tonight
Mostly cloudy, with a low around 33. Breezy, with a west southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Sunday
Partly sunny, with a high near 40. South southwest wind 6 to 8 mph.
Sunday Night
A chance of rain and snow, mainly after 11pm. Mostly cloudy, with a low around 35. West southwest wind 6 to 14 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 37. West southwest wind around 15 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Rain and snow likely, becoming all snow after 1am. Cloudy, with a low around 30. West wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. West southwest wind 11 to 14 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 25. West southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Wednesday
A chance of snow before 11am. Partly sunny, with a high near 28.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
A slight chance of snow. Partly sunny, with a high near 30.
Thursday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Friday
A slight chance of snow. Partly sunny, with a high near 29. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE St Mary MT
 48.66°N 113.39°W (Elev. 7028 ft)
Last Update:
8:49 am MST Nov 15, 2025
Forecast Valid:
1pm MST Nov 15, 2025-6pm MST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation