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

31°F

-1°C

Humidity 98%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 14 Nov 07:11 PM MST
Extended Forecast for

St Mary MT

  • Tonight

    Tonight: Rain and snow likely, becoming all rain after 4am. Mostly cloudy, with a low around 37. Southwest wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 10am. Partly sunny, with a high near 48. West southwest wind 11 to 14 mph, with gusts as high as 28 mph.

    High: 48 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 35. West southwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 35 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 52. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 52 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 36. South southwest wind 3 to 6 mph.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 48. Southwest wind around 7 mph.

    High: 48 °F

    Chance Rain

  • Monday Night

    Monday Night: A chance of rain and snow. Mostly cloudy, with a low around 35. West southwest wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 43. West southwest wind 5 to 7 mph.

    High: 43 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Snow

Detailed Forecast

Tonight
Rain and snow likely, becoming all rain after 4am. Mostly cloudy, with a low around 37. Southwest wind around 11 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A 40 percent chance of rain, mainly before 10am. Partly sunny, with a high near 48. West southwest wind 11 to 14 mph, with gusts as high as 28 mph.
Saturday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 35. West southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Sunday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 52. Light and variable wind becoming southeast around 6 mph in the afternoon.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 36. South southwest wind 3 to 6 mph.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 48. Southwest wind around 7 mph.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 35. West southwest wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday
A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 43. West southwest wind 5 to 7 mph.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 32.
Wednesday
A chance of snow, mainly before 11am. Partly sunny, with a high near 40.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 29.
Thursday
A chance of snow. Mostly cloudy, with a high near 39.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 24.
Friday
A slight chance of snow. Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
4:53 pm MST Nov 14, 2025
Forecast Valid:
8pm MST Nov 14, 2025-6pm MST Nov 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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