National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

WAWONA (WWNC1)

Lat: 37.53447°NLon: 119.64497°WElev: 4309.0ft.

NA

48°F

9°C

Humidity 87%
Wind Speed SSE 8 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 24 Dec 04:51 AM PST
Extended Forecast for

10 Miles S Yosemite Valley CA

Flood Watch December 24, 05:14am until December 26, 04:00pm
Winter Storm Warning December 24, 05:14am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 05:14am until December 26, 04:00pm
    Winter Storm Warning December 24, 05:14am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 32 °F

    Heavy Rain
    and Breezy

  • Wednesday

    Wednesday: Rain and snow showers, becoming all snow after 9am. The rain could be heavy at times. Some thunder is also possible. Temperature falling to around 31 by 4pm. Wind chill values as low as 21. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 38 °F⇓

    Rain/Snow and
    Breezy then
    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow showers before 4am, then snow after 4am. Some thunder is also possible. Steady temperature around 33. Wind chill values as low as 18. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.

    Low: 33 °F

    Snow Showers
    and Breezy

  • Christmas Day

    Christmas Day: Snow before 10am, then snow showers after 10am. The snow could be heavy at times. Some thunder is also possible. High near 32. Wind chill values as low as 16. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.

    High: 32 °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 27. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 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 30. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 30 °F

    Heavy Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23. South southeast wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Snow Likely
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 4pm. Mostly sunny and cold, with a high near 31. East wind around 5 mph becoming west in the afternoon.

    High: 31 °F

    Chance Snow

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Snow level 8500 feet. Low around 32. Wind chill values as low as 22. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain and snow showers, becoming all snow after 9am. The rain could be heavy at times. Some thunder is also possible. Temperature falling to around 31 by 4pm. Wind chill values as low as 21. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday Night
Snow showers before 4am, then snow after 4am. Some thunder is also possible. Steady temperature around 33. Wind chill values as low as 18. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Christmas Day
Snow before 10am, then snow showers after 10am. The snow could be heavy at times. Some thunder is also possible. High near 32. Wind chill values as low as 16. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.
Thursday Night
Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 27. Breezy, with a south wind around 20 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 14 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 30. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 23. South southeast wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday
A 30 percent chance of snow, mainly before 4pm. Mostly sunny and cold, with a high near 31. East wind around 5 mph becoming west in the afternoon.
Saturday Night
A 20 percent chance of snow before 10pm. Mostly clear, with a low around 24. East northeast wind 10 to 15 mph.
Sunday
Sunny, with a high near 36. East northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly clear, with a low around 28. Northeast wind 10 to 15 mph.
Monday
Sunny, with a high near 42. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 35. Northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 45. Northeast wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Yosemite Valley CA
 37.59°N 119.61°W (Elev. 7543 ft)
Last Update:
4:57 am PST Dec 24, 2025
Forecast Valid:
5am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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