Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

57°F

14°C

Humidity 71%
Wind Speed SW 10 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 48°F (9°C)
Visibility 9.00 mi
Last update 10 Oct 10:05 PM PDT
Extended Forecast for

Castro Valley CA

Coastal Flood Advisory October 10, 10:15pm until October 13, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 10, 10:15pm until October 13, 03:00pm

    NOW until 3:00pm Tue

    Coastal Flood Advisory

  • Tonight

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. Calm wind becoming south around 6 mph.

    Low: 51 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 67. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 50. South southwest wind 5 to 9 mph becoming light south after midnight.
Sunday
Sunny, with a high near 67. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 51. Calm wind becoming south around 6 mph.
Columbus Day
Sunny, with a high near 67. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
8:15 pm PDT Oct 10, 2026
10pm PDT Oct 10, 2026-6pm PDT Oct 17, 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