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

Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

64°F

18°C

Humidity 63%
Wind Speed SSW 6 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 02 Jul 10:00 AM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

  • Today

    Today: Sunny, with a high near 74. West wind 5 to 9 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. West wind 3 to 8 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Light southwest wind becoming west 5 to 9 mph in the morning.

    High: 74 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Independence Day

    Independence Day: Mostly sunny, with a high near 74. Southwest wind 5 to 9 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. West wind 5 to 9 mph.
Tonight
Increasing clouds, with a low around 53. West wind 3 to 8 mph.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Light southwest wind becoming west 5 to 9 mph in the morning.
Friday Night
Increasing clouds, with a low around 54. Southwest wind 5 to 8 mph.
Independence Day
Mostly sunny, with a high near 74. Southwest wind 5 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Partly sunny, with a high near 68.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Patchy fog. Otherwise, partly sunny, with a high near 70.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Castro Valley CA
 37.73°N 122.08°W (Elev. 614 ft)
Last Update:
2:47 am PDT Jul 2, 2026
Forecast Valid:
10am PDT Jul 2, 2026-6pm PDT Jul 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation