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

MANZANITA LAKE (VIOC1)

Lat: 40.54011°NLon: 121.58016°WElev: 5732.0ft.

NA

26°F

-3°C

Humidity 93%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 26 Dec 03:52 AM PST
Extended Forecast for

19 Miles NW Chester CA

Winter Storm Warning December 26, 04:01am until December 26, 10:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning December 26, 04:01am until December 26, 10:00pm

    NOW until 10:00pm Fri

    Winter Storm Warning

  • Overnight

    Low: 18 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times.  Steady temperature around 19. Wind chill values as low as -5. Windy, with a south southwest wind 40 to 45 mph decreasing to 32 to 37 mph in the afternoon. Winds could gust as high as 55 mph.  Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.

    High: 19 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 3am. The snow could be heavy at times.  Mostly cloudy, with a low around 14. Windy, with a west southwest wind 21 to 31 mph, with gusts as high as 36 mph.  Chance of precipitation is 70%. New snow accumulation of 3 to 7 inches possible.

    Low: 14 °F

    Heavy Snow
    and Windy
    then Chance
    Snow and
    Breezy

  • Saturday

    Saturday: A 40 percent chance of snow, mainly before 10am.  Mostly sunny, with a high near 21. West wind around 8 mph becoming north northwest in the afternoon.  New snow accumulation of less than a half inch possible.

    High: 21 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 13. Blustery, with an east wind 20 to 22 mph.

    Low: 13 °F

    Partly Cloudy
    and Blustery

  • Sunday

    Sunday: Sunny, with a high near 25. Breezy.

    High: 25 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 17. Breezy.

    Low: 17 °F

    Clear and
    Breezy

  • Monday

    Monday: Sunny, with a high near 28. Blustery.

    High: 28 °F

    Sunny and
    Blustery then
    Sunny

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Low around 18. Wind chill values as low as -4. Windy, with a south southwest wind around 49 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 16 to 22 inches possible.
Friday
Snow. The snow could be heavy at times. Steady temperature around 19. Wind chill values as low as -5. Windy, with a south southwest wind 40 to 45 mph decreasing to 32 to 37 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.
Friday Night
Snow likely, mainly before 3am. The snow could be heavy at times. Mostly cloudy, with a low around 14. Windy, with a west southwest wind 21 to 31 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 7 inches possible.
Saturday
A 40 percent chance of snow, mainly before 10am. Mostly sunny, with a high near 21. West wind around 8 mph becoming north northwest in the afternoon. New snow accumulation of less than a half inch possible.
Saturday Night
Partly cloudy, with a low around 13. Blustery, with an east wind 20 to 22 mph.
Sunday
Sunny, with a high near 25. Breezy.
Sunday Night
Clear, with a low around 17. Breezy.
Monday
Sunny, with a high near 28. Blustery.
Monday Night
Mostly clear, with a low around 23. Breezy.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
New Year's Day
A chance of snow. Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles NW Chester CA
 40.48°N 121.51°W (Elev. 9485 ft)
1:21 am PST Dec 26, 2025
4am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

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