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

TUOLUMNE MEADOWS TUM (TUMC1)

Lat: 37.87639°NLon: 119.34806°WElev: 8654.0ft.

NA

31°F

-1°C

Humidity 98%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 24 Dec 11:00 AM PST
Extended Forecast for

10 Miles W Conway Summit CA

Flood Watch December 24, 11:52am until December 26, 04:00pm
Winter Storm Warning December 24, 11:52am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 11:52am until December 26, 04:00pm
    Winter Storm Warning December 24, 11:52am until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 27 °F⇓

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: Snow showers before 7pm, then snow after 7pm. Some thunder is also possible. Low around 18. Wind chill values as low as -3. Very windy, with a south southwest wind 35 to 40 mph increasing to 45 to 50 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.

    Low: 18 °F

    Snow Showers
    and Very
    Windy

  • Christmas Day

    Christmas Day: Snow. High near 22. Wind chill values as low as -5. Very windy, with a south southwest wind 40 to 45 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

    High: 22 °F

    Snow and Very
    Windy

  • Thursday Night

    Thursday Night: Snow showers. The snow could be heavy at times. Some thunder is also possible. Low around 16. Wind chill values as low as -5. Very windy, with a south southwest wind 45 to 50 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

    Low: 16 °F

    Heavy Snow
    and Very
    Windy

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 19. Very windy, with a southwest wind 35 to 45 mph decreasing to 25 to 35 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 19 °F

    Heavy Snow
    and Very
    Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 3. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 3 °F

    Snow Likely
    and Breezy
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Mostly sunny and cold, with a high near 18. West northwest wind around 10 mph. Little or no snow accumulation expected.

    High: 18 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 4. Windy, with a south southwest wind 20 to 25 mph increasing to 25 to 30 mph after midnight.

    Low: 4 °F

    Mostly Clear
    and Windy

Detailed Forecast

Today
Snow before 1pm, then snow showers after 1pm. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 20 by 4pm. Wind chill values as low as 2. Breezy, with a south southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 22 to 28 inches possible.
Tonight
Snow showers before 7pm, then snow after 7pm. Some thunder is also possible. Low around 18. Wind chill values as low as -3. Very windy, with a south southwest wind 35 to 40 mph increasing to 45 to 50 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 11 to 17 inches possible.
Christmas Day
Snow. High near 22. Wind chill values as low as -5. Very windy, with a south southwest wind 40 to 45 mph, with gusts as high as 65 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 16. Wind chill values as low as -5. Very windy, with a south southwest wind 45 to 50 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.
Friday
Snow. The snow could be heavy at times. High near 19. Very windy, with a southwest wind 35 to 45 mph decreasing to 25 to 35 mph in the afternoon. Winds could gust as high as 55 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 3. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday
A 30 percent chance of snow. Mostly sunny and cold, with a high near 18. West northwest wind around 10 mph. Little or no snow accumulation expected.
Saturday Night
Mostly clear, with a low around 4. Windy, with a south southwest wind 20 to 25 mph increasing to 25 to 30 mph after midnight.
Sunday
Sunny and cold, with a high near 21. Breezy, with a west southwest wind 20 to 25 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 10. Windy, with a north wind 20 to 30 mph.
Monday
Sunny and cold, with a high near 26. Blustery, with a northeast wind 20 to 25 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Mostly clear, with a low around 15. Blustery, with a northeast wind around 20 mph, with gusts as high as 25 mph.
Tuesday
Sunny and cold, with a high near 31. North wind 10 to 15 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles W Conway Summit CA
 38.08°N 119.36°W (Elev. 12178 ft)
Last Update:
10:56 am PST Dec 24, 2025
Forecast Valid:
11am PST Dec 24, 2025-6pm PST Dec 30, 2025
 
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