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

75°F

24°C

Humidity 39%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 20 Mar 01:30 AM PDT
Extended Forecast for

2 Miles NNW Hercules CA

Heat Advisory March 20, 01:50am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 01:50am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 60 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. South southwest wind around 7 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 80. West southwest wind 5 to 10 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 60. Light south southwest wind.
Friday
Sunny, with a high near 88. Light and variable wind becoming southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 57. South southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 80. West southwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 53. West southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Hercules CA
 38.02°N 122.27°W (Elev. 92 ft)
1:47 am PDT Mar 20, 2026
1am PDT Mar 20, 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