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

25°F

-4°C

Humidity 94%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 25 Dec 09:00 PM PST
Extended Forecast for

12 Miles W Conway Summit CA

Flood Watch December 25, 09:54pm until December 26, 04:00pm
Winter Storm Warning December 25, 09:54pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 25, 09:54pm until December 26, 04:00pm
    Winter Storm Warning December 25, 09:54pm until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 17 °F

    Snow Showers
    and Windy

  • Friday

    Friday: Snow. High near 29. Wind chill values as low as -2. Windy, with a southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 29 °F

    Snow and
    Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 5. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: 5 °F

    Snow Likely
    then Chance
    Snow

  • Saturday

    Saturday: A 20 percent chance of snow. Mostly sunny and cold, with a high near 30. Wind chill values as low as -8. West northwest wind around 5 mph.

    High: 30 °F

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Southeast wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 11. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Mostly Clear
    and Blustery

  • Monday

    Monday: Sunny, with a high near 38. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 38 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Tonight
Snow showers. Some thunder is also possible. Low around 17. Wind chill values as low as zero. Windy, with a south southwest wind 35 to 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 16 to 22 inches possible.
Friday
Snow. High near 29. Wind chill values as low as -2. Windy, with a southwest wind 25 to 30 mph decreasing to 20 to 25 mph in the afternoon. Winds could gust as high as 55 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 5. Wind chill values as low as -6. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Saturday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 30. Wind chill values as low as -8. West northwest wind around 5 mph.
Saturday Night
Mostly clear, with a low around 6. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 33. Southeast wind 10 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 11. Blustery, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 38. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 35 mph.
Monday Night
Mostly clear, with a low around 17. East northeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 44. Northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 22. East northeast wind around 10 mph becoming south southwest after midnight.
Wednesday
Sunny, with a high near 45. West wind around 5 mph.
Wednesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 21. West southwest wind around 5 mph.
New Year's Day
A 30 percent chance of snow. Partly sunny, with a high near 40. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Conway Summit CA
 38.09°N 119.42°W (Elev. 9783 ft)
Last Update:
8:56 pm PST Dec 25, 2025
Forecast Valid:
9pm PST Dec 25, 2025-6pm PST Jan 1, 2026
 
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