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

Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

HELL HOLE (HLLC1)

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

NA

76°F

24°C

Humidity 37%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index78°F (26°C)
Last update 26 Aug 09:09 AM PDT
Extended Forecast for

4 Miles E Donner Summit CA

  • Today

    Today: Widespread haze before 11am. Patchy smoke before 1pm. Sunny, with a high near 76. Southwest wind around 10 mph, with gusts as high as 26 mph.

    High: 76 °F

    Haze then
    Patchy Smoke

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 6 to 9 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 75. West southwest wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 75 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. South wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 66. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

    High: 66 °F

    Rain Likely

  • Friday Night

    Friday Night: A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Widespread haze before 11am. Patchy smoke before 1pm. Sunny, with a high near 76. Southwest wind around 10 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 54. Southwest wind 6 to 9 mph.
Thursday
Increasing clouds, with a high near 75. West southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 54. South wind 5 to 10 mph, with gusts as high as 25 mph.
Friday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 66. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Donner Summit CA
 39.32°N 120.31°W (Elev. 7064 ft)
Last Update:
2:00 am PDT Aug 26, 2026
Forecast Valid:
10am PDT Aug 26, 2026-6pm PDT Sep 1, 2026
 
Forecast Discussion
 
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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