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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

HELL HOLE (HLLC1)

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

NA

83°F

28°C

Humidity 23%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index81°F (27°C)
Last update 25 Aug 05:09 PM PDT
Extended Forecast for

Donner Summit CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. South wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 51 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Widespread haze before 10am. Sunny, with a high near 76. Southwest wind 6 to 9 mph, with gusts as high as 26 mph.

    High: 76 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. South wind 5 to 8 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. West southwest wind 5 to 9 mph, with gusts as high as 26 mph.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52. South southwest wind 5 to 9 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. South wind 3 to 8 mph. Winds could gust as high as 22 mph.
Wednesday
Widespread haze before 10am. Sunny, with a high near 76. Southwest wind 6 to 9 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 51. South wind 5 to 8 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 75. West southwest wind 5 to 9 mph, with gusts as high as 26 mph.
Thursday Night
Mostly cloudy, with a low around 52. South southwest wind 5 to 9 mph, with gusts as high as 25 mph.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 68.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.37°W (Elev. 6965 ft)
Last Update:
2:00 pm PDT Aug 25, 2026
Forecast Valid:
5pm PDT Aug 25, 2026-6pm PDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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