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

Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Current conditions at

Berkeley Lab (LBNL1)

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

NA

56°F

13°C

Humidity 88%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 18 Jul 09:00 PM PDT
Extended Forecast for

Hercules CA

  • Tonight

    Tonight: Increasing clouds, with a low around 54. Southwest wind 9 to 11 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. South southwest wind 10 to 15 mph, with gusts as high as 18 mph.

    High: 71 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 55. South southwest wind 14 to 16 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 70. South southwest wind 14 to 18 mph, with gusts as high as 23 mph.

    High: 70 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South southwest wind around 18 mph, with gusts as high as 23 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 54. Southwest wind 9 to 11 mph.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. South southwest wind 10 to 15 mph, with gusts as high as 18 mph.
Saturday Night
Increasing clouds, with a low around 55. South southwest wind 14 to 16 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 70. South southwest wind 14 to 18 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 56. South southwest wind around 18 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 70.
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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 pm PDT Jul 18, 2025
Forecast Valid:
9pm PDT Jul 18, 2025-6pm PDT Jul 25, 2025
 
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Additional Resources

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