Winter Weather Across Portions of the Mid-Atlantic; Heavy Rain Along the Gulf Coast and Southeast

A storm system will continue to slowly move through the Gulf Coast and Southeast U.S. over the next couple of days, bringing a heavy rainfall threat through the weekend. Isolated instances of flooding may occur. On the north side of this storm system, colder air will support areas of mixed wintry precipitation and light snow from the Tennessee Valley to the Mid-Atlantic Friday. Read More >

Current conditions at

Berkeley Lab (LBNL1)

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

NA

48°F

9°C

Humidity 55%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 05 Dec 01:30 AM PST
Extended Forecast for

Hercules CA

Cold Weather Advisory December 5, 01:53am until December 5, 08:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory December 5, 01:53am until December 5, 08:00am

    NOW until 8:00am Fri

    Cold Weather Advisory

  • Overnight

    Low: 40 °F

    Patchy Fog

  • Friday

    Friday: Sunny, with a high near 58. East wind 3 to 8 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. Light and variable wind becoming east 5 to 10 mph after midnight.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 60. East wind 5 to 8 mph becoming light and variable  in the afternoon.

    High: 60 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. East southeast wind around 7 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 40. East wind 7 to 9 mph.
Friday
Sunny, with a high near 58. East wind 3 to 8 mph.
Friday Night
Partly cloudy, with a low around 44. Light and variable wind becoming east 5 to 10 mph after midnight.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 60. East wind 5 to 8 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 45. East southeast wind around 7 mph.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 62.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Hercules CA
 38°N 122.27°W (Elev. 377 ft)
1:40 am PST Dec 5, 2025
1am PST Dec 5, 2025-6pm PST Dec 11, 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