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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

Berkeley Lab (LBNL1)

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

NA

49°F

9°C

Humidity 81%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 06 Dec 09:00 PM PST
Extended Forecast for

Hercules CA

  • Tonight

    Tonight: Widespread dense fog, mainly after 5am. Otherwise, partly cloudy, with a low around 44. Light east wind.

    Low: 44 °F

    Mostly Clear
    then Dense
    Fog

  • Sunday

    Sunday: Widespread dense fog before 10am. Otherwise, partly sunny, with a high near 57. East wind around 5 mph becoming light and variable in the morning.

    High: 57 °F

    Dense Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. East wind 3 to 7 mph.

    Low: 44 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 59 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly after 5am. Otherwise, partly cloudy, with a low around 44. Light east wind.
Sunday
Widespread dense fog before 10am. Otherwise, partly sunny, with a high near 57. East wind around 5 mph becoming light and variable in the morning.
Sunday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 44. East wind 3 to 7 mph.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming northwest around 5 mph in the afternoon.
Monday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 45. Calm wind.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hercules CA
 38°N 122.27°W (Elev. 377 ft)
Last Update:
12:26 pm PST Dec 6, 2025
Forecast Valid:
9pm PST Dec 6, 2025-6pm PST Dec 13, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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