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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Berkeley Lab (LBNL1)

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

NA

61°F

16°C

Humidity 72%
Wind Speed SW 7 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 10 Apr 03:30 PM PDT
Extended Forecast for

2 Miles N Hercules CA

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 65. Southwest wind around 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance
    T-storms

  • Tonight

    Tonight: Rain and thunderstorms likely before 3am, then a slight chance of rain between 3am and 5am. Mostly cloudy, with a low around 54. South southwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers
    Likely then
    Chance Rain

  • Saturday

    Saturday: A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 61. South wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 5am, then rain after 5am. Low around 49. South wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 65. Southwest wind around 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms likely before 3am, then a slight chance of rain between 3am and 5am. Mostly cloudy, with a low around 54. South southwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of rain and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 61. South wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 5am, then rain after 5am. Low around 49. South wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Rain before 8am, then showers and possibly a thunderstorm after 8am. High near 58. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of rain before 11pm. Partly cloudy, with a low around 48. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 70.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
Last Update:
2:57 pm PDT Apr 10, 2026
Forecast Valid:
3pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation