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

Blizzard Conditions Continue Tonight Across Coastal Maine; Critical Fire Weather in the Southern Plains Tuesday

Heavy snow and strong winds will continue into Tuesday morning across Maine as the major winter storm departs off the coast. Blizzard Warnings and Winter Storm Warnings remain in effect. Strong winds and dry conditions will promote elevated to critical fire weather conditions across southeast Colorado into the southern High Plains Tuesday. Read More >

Current conditions at

Berkeley Lab (LBNL1)

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

NA

61°F

16°C

Humidity 66%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 23 Feb 05:15 PM PST
Extended Forecast for

Hercules CA

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Mostly cloudy, with a high near 64. South southwest wind around 6 mph.

    High: 64 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Rain likely, mainly after 3am. Cloudy, with a low around 54. Southwest wind around 7 mph becoming south southeast after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 61. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 8pm. Cloudy, with a low around 54. South southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Rain Likely

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am. Partly sunny, with a high near 64. West wind around 6 mph.

    High: 64 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly cloudy, with a high near 64. South southwest wind around 6 mph.
Tonight
Rain likely, mainly after 3am. Cloudy, with a low around 54. Southwest wind around 7 mph becoming south southeast after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 61. South wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain likely, mainly before 8pm. Cloudy, with a low around 54. South southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 64. West wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly cloudy, with a high near 67.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 66.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Sunday
A slight chance of rain. Partly sunny, with a high near 63.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 65.
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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:
2:22 pm PST Feb 23, 2026
Forecast Valid:
5pm PST Feb 23, 2026-6pm PST Mar 2, 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