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

28°F

-2°C

Humidity 96%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 24 Dec 09:00 PM PST
Extended Forecast for

11 Miles W Conway Summit CA

Flood Watch December 24, 09:22pm until December 26, 04:00pm
Winter Storm Warning December 24, 09:22pm until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
Winter Storm Warning
  •  
    Flood Watch December 24, 09:22pm until December 26, 04:00pm
    Winter Storm Warning December 24, 09:22pm until December 26, 10:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 21 °F

    Snow and
    Windy

  • Christmas Day

    Christmas Day: Snow. High near 27. Wind chill values as low as -2. Windy, with a south southwest wind around 35 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New snow accumulation of 19 to 25 inches possible.

    High: 27 °F

    Snow and
    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 -2. Windy, with a south southwest wind around 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 13 to 19 inches possible.

    Low: 16 °F

    Heavy Snow
    and Windy

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 25. Wind chill values as low as -4. Windy, with a southwest wind 30 to 35 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 6 to 10 inches possible.

    High: 25 °F

    Heavy Snow
    and Windy

  • Friday Night

    Friday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 3. West southwest wind 10 to 15 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
    then Chance
    Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Mostly sunny and cold, with a high near 24. West northwest wind 5 to 10 mph. Little or no snow accumulation expected.

    High: 24 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 4. Breezy, with a west wind 15 to 25 mph becoming south southwest after midnight. Winds could gust as high as 35 mph.

    Low: 4 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny and cold, with a high near 28. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 28 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Tonight
Snow. Steady temperature around 21. Wind chill values as low as -1. Windy, with a south southwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 11 to 17 inches possible.
Christmas Day
Snow. High near 27. Wind chill values as low as -2. Windy, with a south southwest wind around 35 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 -2. Windy, with a south southwest wind around 40 mph, with gusts as high as 60 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 25. Wind chill values as low as -4. Windy, with a southwest wind 30 to 35 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 6 to 10 inches possible.
Friday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 3. West southwest wind 10 to 15 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 24. West northwest wind 5 to 10 mph. Little or no snow accumulation expected.
Saturday Night
Mostly clear, with a low around 4. Breezy, with a west wind 15 to 25 mph becoming south southwest after midnight. Winds could gust as high as 35 mph.
Sunday
Sunny and cold, with a high near 28. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 9. Blustery, with a north wind 20 to 25 mph, with gusts as high as 35 mph.
Monday
Sunny, with a high near 33. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 14. Blustery, with a northeast wind 15 to 20 mph.
Tuesday
Sunny, with a high near 38. North northeast wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 19. West wind around 10 mph, with gusts as high as 15 mph.
Wednesday
A 20 percent chance of snow. Mostly sunny, with a high near 39. West southwest wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Conway Summit CA
 38.08°N 119.38°W (Elev. 11601 ft)
Last Update:
8:57 pm PST Dec 24, 2025
Forecast Valid:
9pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation