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

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

ST. REGIS (STGM8)

Lat: 47.30711°NLon: 115.10761°WElev: 2678.0ft.

NA

34°F

1°C

Humidity 100%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 25 Dec 05:02 AM MST
Extended Forecast for

St. Regis MT

  • Christmas Day

    Christmas Day: A chance of rain or freezing rain before 11am, then a chance of rain after 2pm. Areas of fog before 2pm, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 43. Calm wind. Chance of precipitation is 40%.

    High: 43 °F

    Chance
    Rain/Freezing
    Rain and
    Areas Fog

  • Tonight

    Tonight: Rain likely before 3am, then rain after 5am. Patchy fog before 8pm, then patchy fog after 10pm. Low around 30. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: Rain, possibly mixed with snow. Patchy fog before 8am. Snow level 3600 feet. High near 39. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow and
    Patchy Fog

  • Friday Night

    Friday Night: Rain, possibly mixed with snow, becoming all snow after 8pm. Low around 23. Southeast wind 6 to 15 mph becoming west southwest after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Rain/Snow
    then Snow

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 29. West southwest wind 3 to 6 mph. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 29 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 10.

    Low: 10 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 30.

    High: 30 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 15.

    Low: 15 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 35.

    High: 35 °F

    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Christmas Day
A chance of rain or freezing rain before 11am, then a chance of rain after 2pm. Areas of fog before 2pm, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 43. Calm wind. Chance of precipitation is 40%.
Tonight
Rain likely before 3am, then rain after 5am. Patchy fog before 8pm, then patchy fog after 10pm. Low around 30. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, possibly mixed with snow. Patchy fog before 8am. Snow level 3600 feet. High near 39. Calm wind becoming southwest 5 to 8 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain, possibly mixed with snow, becoming all snow after 8pm. Low around 23. Southeast wind 6 to 15 mph becoming west southwest after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 29. West southwest wind 3 to 6 mph. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog between 2am and 5am. Otherwise, partly cloudy, with a low around 10.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 30.
Sunday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 15.
Monday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 35.
Monday Night
Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 20.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 39.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 25.
Wednesday
Patchy fog. Otherwise, partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Regis MT
 47.29°N 115.12°W (Elev. 2838 ft)
Last Update:
1:02 am MST Dec 25, 2025
Forecast Valid:
5am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation