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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Berkeley Lab (LBNL1)

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

NA

53°F

12°C

Humidity 45%
Wind Speed NE 10 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 10 Jan 05:30 PM PST
Extended Forecast for

Hercules CA

Cold Weather Advisory January 11, 01:00am until January 11, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. East wind around 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. East northeast wind around 7 mph.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. Light east northeast wind.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 55. Northeast wind around 7 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Northeast wind around 6 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. East wind around 6 mph.
Sunday
Mostly sunny, with a high near 56. East northeast wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 39. Light east northeast wind.
Monday
Sunny, with a high near 55. Northeast wind around 7 mph.
Monday Night
Mostly clear, with a low around 40. Northeast wind around 6 mph.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 60.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hercules CA
 38.03°N 122.25°W (Elev. 285 ft)
Last Update:
2:45 pm PST Jan 10, 2026
Forecast Valid:
5pm PST Jan 10, 2026-6pm PST Jan 17, 2026
 
Forecast Discussion
 
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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