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

EW8163 Hume (E8163)

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

NA

42°F

6°C

Humidity 91%
Wind Speed ENE 0 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 24 Dec 08:24 AM PST
Extended Forecast for

26 Miles NNE Squaw Valley CA

Flood Watch December 24, 09:08am until December 26, 04:00pm
Winter Storm Warning December 24, 09:08am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 09:08am until December 26, 04:00pm
    Winter Storm Warning December 24, 09:08am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 39 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow showers, becoming all snow after 1am. Some thunder is also possible.  Snow level 6800 feet. Low around 28. Wind chill values as low as 19. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 28 °F

    Rain/Snow and
    Breezy

  • Christmas Day

    Christmas Day: Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible.  Steady temperature around 32. Wind chill values as low as 17. South wind around 15 mph, with gusts as high as 35 mph.  Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.

    High: 32 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow showers. The snow could be heavy at times. Some thunder is also possible.  Low around 27. Wind chill values as low as 17. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 40 mph.  Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    Low: 27 °F

    Heavy Snow
    and Breezy

  • 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 34. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 34 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 18. South wind around 5 mph becoming east after midnight.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow.  Partly sunny, with a high near 37. Northeast wind around 5 mph becoming west southwest in the morning.  New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow.  Partly cloudy, with a low around 20. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Rain before 10am, then rain and snow. The rain could be heavy at times. Some thunder is also possible. Snow level 7800 feet lowering to 7100 feet in the afternoon . Temperature rising to near 39 by noon, then falling to around 34 during the remainder of the day. Wind chill values as low as 26. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain and snow showers, becoming all snow after 1am. Some thunder is also possible. Snow level 6800 feet. Low around 28. Wind chill values as low as 19. Breezy, with a south wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Christmas Day
Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. Steady temperature around 32. Wind chill values as low as 17. South wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 14 to 20 inches possible.
Thursday Night
Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 27. Wind chill values as low as 17. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 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 34. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 18. South wind around 5 mph becoming east after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 37. Northeast wind around 5 mph becoming west southwest in the morning. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 20. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 42. Northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 23. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 48. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 30. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 51. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
26 Miles NNE Squaw Valley CA
 37.03°N 118.97°W (Elev. 6781 ft)
8:57 am PST Dec 24, 2025
9am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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