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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

HELL HOLE (HLLC1)

Lat: 39.06971°NLon: 120.41989°WElev: 5240.0ft.

NA

87°F

31°C

Humidity 18%
Wind Speed SSE 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index84°F (29°C)
Last update 22 Aug 11:09 AM PDT
Extended Forecast for

Donner Summit CA

  • Today

    Today: Mostly sunny, with a high near 83. Southwest wind 3 to 6 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Mostly clear, with a low around 53.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 11pm. Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 76.

    High: 76 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 83. Southwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 56. Calm wind.
Saturday
A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 53. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A 20 percent chance of showers before 11pm. Mostly clear, with a low around 53.
Monday
A 50 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 77.
Monday Night
A chance of showers before 11pm. Partly cloudy, with a low around 52.
Tuesday
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 76.
Tuesday Night
A chance of showers, mainly before 11pm. Partly cloudy, with a low around 50.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 48.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.3°N 120.4°W (Elev. 7037 ft)
Last Update:
10:21 am PDT Aug 22, 2025
Forecast Valid:
11am PDT Aug 22, 2025-6pm PDT Aug 28, 2025
 
Forecast Discussion
 
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Additional Resources

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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