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 NW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 24 Dec 08:02 PM MST
Extended Forecast for

St. Regis MT

  • Tonight

    Tonight: Rain likely, mainly before 1am. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 32. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Rain Likely
    and Patchy
    Fog then
    Chance Rain
    and Areas Fog

  • Christmas Day

    Christmas Day: A 30 percent chance of rain, mainly after 4pm. Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 43. Calm wind.

    High: 43 °F

    Areas Fog
    then Chance
    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 70%.

    Low: 30 °F

    Rain Likely
    and Patchy
    Fog

  • Friday

    Friday: Rain and snow. Patchy fog before 11am. Snow level 3700 feet. High near 40. Light south southwest wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow and
    Patchy Fog

  • Friday Night

    Friday Night: Rain and snow, becoming all snow after 8pm. Low around 23. Light west southwest wind. 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 before 11am. Partly sunny, with a high near 31. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 14.

    Low: 14 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 31.

    High: 31 °F

    Areas Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 16.

    Low: 16 °F

    Patchy Fog

Detailed Forecast

Tonight
Rain likely, mainly before 1am. Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 32. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
A 30 percent chance of rain, mainly after 4pm. Areas of fog before 1pm, then patchy fog after 4pm. Otherwise, partly sunny, with a high near 43. Calm wind.
Thursday Night
Rain likely. Patchy fog. Otherwise, mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 70%.
Friday
Rain and snow. Patchy fog before 11am. Snow level 3700 feet. High near 40. Light south southwest wind. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain and snow, becoming all snow after 8pm. Low around 23. Light west southwest wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 40 percent chance of snow before 11am. Partly sunny, with a high near 31. New snow accumulation of less than a half inch possible.
Saturday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 14.
Sunday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 31.
Sunday Night
Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 16.
Monday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 36.
Monday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 23.
Wednesday
A slight chance of rain. Patchy fog. Snow level 3100 feet rising to 4300 feet in the afternoon. Otherwise, mostly 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 pm MST Dec 24, 2025
Forecast Valid:
8pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation