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

Berkeley Lab (LBNL1)

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

NA

57°F

14°C

Humidity 73%
Wind Speed SE 19 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 16 Nov 11:00 PM PST
Extended Forecast for

Hercules CA

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 52. Southwest wind 10 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Showers

  • Monday

    Monday: Rain likely, mainly before 4pm. Mostly cloudy, with a high near 58. West wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Rain Likely

  • Monday Night

    Monday Night: A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 48. West wind 5 to 9 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. Light and variable wind becoming west northwest around 5 mph in the morning.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Light south wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Partly sunny, with a high near 58.

    High: 58 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 10pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 52. Southwest wind 10 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 58. West wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 48. West wind 5 to 9 mph becoming calm. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly sunny, with a high near 60. Light and variable wind becoming west northwest around 5 mph in the morning.
Tuesday Night
Mostly clear, with a low around 48. Light south wind.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
A 30 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 50.
Thursday
A chance of rain. Partly sunny, with a high near 58.
Thursday Night
A chance of rain before 10pm. Mostly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Mostly sunny, with a high near 61.
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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:
6:51 pm PST Nov 16, 2025
Forecast Valid:
11pm PST Nov 16, 2025-6pm PST Nov 23, 2025
 
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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