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

60°F

16°C

Humidity 67%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 15 Nov 04:30 PM PST
Extended Forecast for

Hercules CA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain. Mostly cloudy, with a steady temperature around 61. South southwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly after 8pm. Low around 56. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    Rain

  • Sunday

    Sunday: Rain. High near 61. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Rain

  • Sunday Night

    Sunday Night: Rain and possibly a thunderstorm. Low around 52. South southwest wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain

  • Monday

    Monday: Rain likely, mainly before 10am. Partly sunny, with a high near 59. South southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain Likely

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of rain after 4pm. Mostly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

This Afternoon
A 30 percent chance of rain. Mostly cloudy, with a steady temperature around 61. South southwest wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly after 8pm. Low around 56. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 61. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain and possibly a thunderstorm. Low around 52. South southwest wind 11 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Rain likely, mainly before 10am. Partly sunny, with a high near 59. South southwest wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
A chance of rain after 4pm. Mostly sunny, with a high near 60.
Wednesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 50.
Thursday
Rain likely. Mostly cloudy, with a high near 58.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 49.
Friday
A slight chance of rain. Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hercules CA
 38.02°N 122.27°W (Elev. 92 ft)
Last Update:
12:26 pm PST Nov 15, 2025
Forecast Valid:
4pm PST Nov 15, 2025-6pm PST Nov 22, 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