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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Current conditions at

Berkeley Lab (LBNL1)

Lat: 37.8771°NLon: 122.2486°WElev: 888.0ft.

NA

53°F

12°C

Humidity 96%
Wind Speed SE 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 04 Jul 05:30 AM PDT
Extended Forecast for

Hercules CA

  • Independence Day

    Independence Day: Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 8 to 11 mph.

    High: 72 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. South southwest wind 9 to 11 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 69. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 69 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. Southwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69. Southwest wind 9 to 11 mph.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Independence Day
Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 8 to 11 mph.
Tonight
Increasing clouds, with a low around 55. South southwest wind 9 to 11 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 69. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly cloudy, with a low around 55. Southwest wind around 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 69. Southwest wind 9 to 11 mph.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hercules CA
 38.02°N 122.27°W (Elev. 92 ft)
Last Update:
1:26 am PDT Jul 4, 2026
Forecast Valid:
5am PDT Jul 4, 2026-6pm PDT Jul 10, 2026
 
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Additional Resources

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