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

SUGARLOAF (SGFO3)

Lat: 43.66361°NLon: 122.62917°WElev: 4328.0ft.

NA

37°F

3°C

Humidity 89%
Wind Speed ESE 5 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 24 Dec 06:06 PM PST
Extended Forecast for

5 Miles WSW Hills Creek Res. OR

Winter Weather Advisory December 26, 04:00am until December 27, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A slight chance of showers before midnight, then rain likely, mainly between midnight and 2am. Snow level 4500 feet rising to 5100 feet after midnight. Mostly cloudy, with a steady temperature around 38. South southeast wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Slight Chance
    Showers then
    Rain Likely

  • Christmas Day

    Christmas Day: Rain likely, mainly before 8am. Snow level 5100 feet lowering to 4200 feet in the afternoon . Partly sunny, with a high near 46. South wind 9 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly after 10pm. Snow level 3700 feet. Increasing clouds, with a low around 34. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain Likely

  • Friday

    Friday: Snow showers, possibly mixed with rain. Snow level 3500 feet. High near 39. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow showers, possibly mixed with rain, becoming all snow after 7pm. Low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Saturday

    Saturday: A 50 percent chance of snow showers before 10am. Mostly cloudy, with a high near 36. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before midnight, then rain likely, mainly between midnight and 2am. Snow level 4500 feet rising to 5100 feet after midnight. Mostly cloudy, with a steady temperature around 38. South southeast wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Christmas Day
Rain likely, mainly before 8am. Snow level 5100 feet lowering to 4200 feet in the afternoon . Partly sunny, with a high near 46. South wind 9 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Thursday Night
Rain likely, mainly after 10pm. Snow level 3700 feet. Increasing clouds, with a low around 34. South southeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Snow showers, possibly mixed with rain. Snow level 3500 feet. High near 39. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Snow showers, possibly mixed with rain, becoming all snow after 7pm. Low around 30. West wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 50 percent chance of snow showers before 10am. Mostly cloudy, with a high near 36. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Partly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
A slight chance of rain. Sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Hills Creek Res. OR
 43.64°N 122.52°W (Elev. 2972 ft)
Last Update:
6:41 pm PST Dec 24, 2025
Forecast Valid:
7pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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Chance of Precipitation