Coastal Threats for the East and Gulf; Record Warmth for the Central U.S.

Persistent onshore flow across the Southeast and portions of the mid-Atlantic will keep the risk of rip currents through the weekend. Rainfall could be locally heavy across Florida, especially along the eastern shoreline. Meanwhile, record warmth for portions of the Plains and Midwest with elevated fire concerns. For the west, a trough will keep the pattern unsettled with wet conditions. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Partly Cloudy

55°F

13°C

Humidity 89%
Wind Speed ENE 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 04 Oct 06:54 AM PDT
Extended Forecast for

Castro Valley CA

  • Today

    Today: Sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Light and variable wind.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. West wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 56. Light and variable wind.
Sunday
Sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 56. West wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming northwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 56.
Friday
A slight chance of rain. Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.71°N 122.08°W (Elev. 397 ft)
2:35 am PDT Oct 4, 2025
7am PDT Oct 4, 2025-6pm PDT Oct 10, 2025
 
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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