Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

Berkeley Lab (LBNL1)

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

NA

78°F

26°C

Humidity 49%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 57°F (14°C)
Visibility NA
Heat Index79°F (26°C)
Last update 19 Mar 07:45 PM PDT
Extended Forecast for

2 Miles WNW Hercules CA

Heat Advisory March 19, 08:11pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 08:11pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 80. Light and variable wind becoming south southwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 57. South southwest wind around 7 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 73. West wind 7 to 9 mph.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. West wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 55. West southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Light and variable wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 57. South southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 73. West wind 7 to 9 mph.
Saturday Night
Mostly clear, with a low around 54. West wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 73.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Hercules CA
 38.02°N 122.3°W (Elev. 0 ft)
2:37 pm PDT Mar 19, 2026
8pm PDT Mar 19, 2026-6pm PDT Mar 26, 2026
 
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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