Severe Thunderstorms in the Southeast; Critical Fire Weather in the Northern Plains

Isolated severe storms with locally damaging wind gusts and hail are possible from the coastal Carolinas into the Florida Peninsula, and along the central Gulf Coast. Heavy rain may cause localized areas of flash flooding in the Gulf Coast. Gusty winds and dry conditions may produce elevated to critical fire weather across the northern/central Plains. Record heat is expected in the West. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

73°F

23°C

Humidity 56%
Wind Speed WSW 6 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 11 May 01:35 PM PDT
Extended Forecast for

Castro Valley CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. West wind around 8 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. West wind 3 to 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 52. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. West wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

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

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. West wind around 8 mph.
Tonight
Partly cloudy, with a low around 54. West wind 3 to 7 mph.
Tuesday
Mostly sunny, with a high near 72. Light west wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Increasing clouds, with a low around 52. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 71. West wind 7 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
1:26 pm PDT May 11, 2026
2pm PDT May 11, 2026-6pm PDT May 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