Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Clear

66°F

19°C

Humidity 63%
Wind Speed NW 10 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 54°F (12°C)
Visibility 9.00 mi
Last update 22 Mar 11:20 AM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

  • Today

    Today: Sunny, with a high near 76. West wind 3 to 7 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. South wind around 6 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 76. Light and variable wind becoming west 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. West wind 3 to 8 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tuesday Night

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

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 76. West wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 50. South wind around 6 mph.
Monday
Sunny, with a high near 76. Light and variable wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 52. West wind 3 to 8 mph.
Tuesday
Sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Castro Valley CA
 37.73°N 122.08°W (Elev. 614 ft)
8:52 am PDT Mar 22, 2026
11am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database