National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

64°F

18°C

Humidity 74%
Wind Speed NW 14 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Jul 06:54 PM PDT
Extended Forecast for

Castro Valley CA

  • Tonight

    Tonight: Increasing clouds, with a low around 56. West wind 7 to 10 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 72 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog between midnight and 2am. Otherwise, increasing clouds, with a low around 56. West southwest wind 6 to 10 mph.

    Low: 56 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Light west southwest wind becoming west 5 to 10 mph in the morning.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 56. West southwest wind 5 to 10 mph.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. West wind 7 to 10 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Patchy fog between midnight and 2am. Otherwise, increasing clouds, with a low around 56. West southwest wind 6 to 10 mph.
Thursday
Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Light west southwest wind becoming west 5 to 10 mph in the morning.
Thursday Night
Patchy fog between midnight and 3am. Otherwise, partly cloudy, with a low around 56. West southwest wind 5 to 10 mph.
Friday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75.
Friday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 55.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Patchy fog. Otherwise, mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.69°N 122.05°W (Elev. 364 ft)
Last Update:
1:26 pm PDT Jul 15, 2025
Forecast Valid:
7pm PDT Jul 15, 2025-6pm PDT Jul 22, 2025
 
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