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

65°F

18°C

Humidity 48%
Wind Speed WNW 3 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 26 Aug 07:09 AM PDT
Extended Forecast for

Donner Summit CA

  • Today

    Today: Widespread haze before 10am. Patchy smoke before noon. Sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 26 mph.

    High: 76 °F

    Haze then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. South southwest wind 3 to 7 mph.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 74. Southwest wind 6 to 9 mph, with gusts as high as 25 mph.

    High: 74 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. West southwest wind 5 to 9 mph becoming light south  after midnight. Winds could gust as high as 24 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 66. South southwest wind 5 to 8 mph, with gusts as high as 24 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 46.

    Low: 46 °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 43.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Widespread haze before 10am. Patchy smoke before noon. Sunny, with a high near 76. Southwest wind 6 to 10 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 51. South southwest wind 3 to 7 mph.
Thursday
Increasing clouds, with a high near 74. Southwest wind 6 to 9 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 51. West southwest wind 5 to 9 mph becoming light south after midnight. Winds could gust as high as 24 mph.
Friday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 66. South southwest wind 5 to 8 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 46.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.37°W (Elev. 6965 ft)
2:00 am PDT Aug 26, 2026
7am PDT Aug 26, 2026-6pm PDT Sep 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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