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 >

Hazardous Weather Conditions

Current conditions at

Georgetown Lake (MTGTL)

Lat: 46.191°NLon: 113.3°WElev: 6338.0ft.

NA

33°F

1°C

Humidity 78%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 25 Dec 06:45 PM MST
Extended Forecast for

10 Miles S Georgetown MT

Wind Advisory December 26, 06:00am until December 27, 05:00am
Winter Weather Advisory December 27, 05:00am until December 27, 08:00pm
Click here for hazard details and duration
Wind Advisory
Winter Weather Advisory

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 2am. The snow could be heavy at times. Patchy blowing snow. Mostly cloudy, with a low around 20. South southwest wind around 21 mph, with gusts as high as 28 mph. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 20 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Friday

    Friday: Snow likely, mainly before 4pm. Patchy blowing snow before 8am, then widespread blowing snow after 9am. Partly sunny, with a high near 23. Wind chill values as low as -3. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 49 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 23 °F

    Snow Likely
    and Blowing
    Snow

  • Friday Night

    Friday Night: Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 8pm. Low around 7. Wind chill values as low as -17. Windy, with a west wind 32 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 7 °F

    Heavy Snow
    and Blowing
    Snow

  • Saturday

    Saturday: Snow. Widespread blowing snow before 2pm. High near 9. Wind chill values as low as -18. Windy, with a west wind 28 to 38 mph decreasing to 17 to 27 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 9 °F

    Snow and
    Blowing Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -3. West wind 13 to 15 mph, with gusts as high as 21 mph.

    Low: -3 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and cold, with a high near 10.

    High: 10 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 4.

    Low: 4 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 20.

    High: 20 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 2am. The snow could be heavy at times. Patchy blowing snow. Mostly cloudy, with a low around 20. South southwest wind around 21 mph, with gusts as high as 28 mph. Total nighttime snow accumulation of 1 to 3 inches possible.
Friday
Snow likely, mainly before 4pm. Patchy blowing snow before 8am, then widespread blowing snow after 9am. Partly sunny, with a high near 23. Wind chill values as low as -3. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 49 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow, mainly after 11pm. The snow could be heavy at times. Widespread blowing snow, mainly after 8pm. Low around 7. Wind chill values as low as -17. Windy, with a west wind 32 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Saturday
Snow. Widespread blowing snow before 2pm. High near 9. Wind chill values as low as -18. Windy, with a west wind 28 to 38 mph decreasing to 17 to 27 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Saturday Night
Partly cloudy, with a low around -3. West wind 13 to 15 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny and cold, with a high near 10.
Sunday Night
Mostly clear, with a low around 4.
Monday
Mostly sunny, with a high near 20.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 25.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
Mostly cloudy, with a high near 28.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 21.
New Year's Day
A chance of snow. Mostly cloudy, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Georgetown MT
 46.06°N 113.28°W (Elev. 8914 ft)
Last Update:
1:01 pm MST Dec 25, 2025
Forecast Valid:
7pm MST Dec 25, 2025-6pm MST Jan 1, 2026
 
Forecast Discussion
 
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