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

EW8163 Hume (E8163)

Lat: 36.78783°NLon: 118.91317°WElev: 5239.0ft.

NA

40°F

4°C

Humidity 96%
Wind Speed W 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 39°F (4°C)
Visibility NA
Last update 24 Dec 09:51 AM PST
Extended Forecast for

27 Miles NE Squaw Valley CA

Flood Watch December 24, 10:09am until December 26, 04:00pm
Winter Storm Warning December 24, 10:09am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 10:09am until December 26, 04:00pm
    Winter Storm Warning December 24, 10:09am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 32 °F⇓

    Heavy Snow

  • Tonight

    Tonight: Snow before 1am, then snow showers between 1am and 4am, then snow after 4am. Some thunder is also possible. Low around 20. Wind chill values as low as 8. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

    Low: 20 °F

    Snow

  • Christmas Day

    Christmas Day: Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 28. Wind chill values as low as 5. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 22 to 28 inches possible.

    High: 28 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 19. Wind chill values as low as 6. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.

    Low: 19 °F

    Heavy Snow

  • Friday

    Friday: Snow showers before 1pm, then snow, mainly after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 26. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

    High: 26 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 10. West southwest wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny and cold, with a high near 28. North northwest wind around 5 mph becoming west southwest in the morning. New snow accumulation of less than one inch possible.

    High: 28 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow. Partly cloudy, with a low around 12. North northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Snow. The snow could be heavy at times. Temperature rising to near 32 by noon, then falling to around 26 during the remainder of the day. Wind chill values as low as 15. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 14 to 20 inches possible.
Tonight
Snow before 1am, then snow showers between 1am and 4am, then snow after 4am. Some thunder is also possible. Low around 20. Wind chill values as low as 8. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.
Christmas Day
Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 28. Wind chill values as low as 5. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 22 to 28 inches possible.
Thursday Night
Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 19. Wind chill values as low as 6. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 17 to 23 inches possible.
Friday
Snow showers before 1pm, then snow, mainly after 1pm. The snow could be heavy at times. Some thunder is also possible. High near 26. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 10. West southwest wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 40 percent chance of snow. Partly sunny and cold, with a high near 28. North northwest wind around 5 mph becoming west southwest in the morning. New snow accumulation of less than one inch possible.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 12. North northeast wind around 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 34. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 17. North northeast wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 40. North wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Partly cloudy, with a low around 24. North northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 43. North wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
27 Miles NE Squaw Valley CA
 37°N 118.85°W (Elev. 9393 ft)
Last Update:
9:57 am PST Dec 24, 2025
Forecast Valid:
10am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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Additional Resources

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Chance of Precipitation