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

46°F

8°C

Humidity 91%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 24 Dec 02:51 AM PST
Extended Forecast for

13 Miles SSE Yosemite Valley CA

Flood Watch December 24, 03:04am until December 26, 04:00pm
Winter Storm Warning December 24, 03:04am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 03:04am until December 26, 04:00pm
    Winter Storm Warning December 24, 03:04am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 36 °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 32 by 4pm. Wind chill values as low as 22. South 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: 38 °F⇓

    Rain/Snow
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow showers before 4am, then snow after 4am. Some thunder is also possible. Steady temperature around 34. Wind chill values as low as 20. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 inches possible.

    Low: 34 °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 33. Wind chill values as low as 18. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

    High: 33 °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 28. Breezy, with a south southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 inches possible.

    Low: 28 °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 25 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 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 60%. 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 32. East northeast wind around 5 mph becoming calm in the morning.

    High: 32 °F

    Chance Snow

Detailed Forecast

Overnight
Rain. The rain could be heavy at times. Steady temperature around 36. Wind chill values as low as 24. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one 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 32 by 4pm. Wind chill values as low as 22. South 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.
Wednesday Night
Snow showers before 4am, then snow after 4am. Some thunder is also possible. Steady temperature around 34. Wind chill values as low as 20. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 12 to 18 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 33. Wind chill values as low as 18. Breezy, with a south wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.
Thursday Night
Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 28. Breezy, with a south southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 11 to 17 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 25 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 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 60%. 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 32. East northeast wind around 5 mph becoming calm in the morning.
Saturday Night
A 20 percent chance of snow before 10pm. Mostly clear, with a low around 25. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 37. North wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 29. Northeast wind around 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 42. North northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 35. Northeast wind around 10 mph.
Tuesday
Mostly sunny, with a high near 45. North northeast wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSE Yosemite Valley CA
 37.55°N 119.55°W (Elev. 7425 ft)
Last Update:
2:57 am PST Dec 24, 2025
Forecast Valid:
3am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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