Severe Thunderstorms and Heavy Rain Across the Central US; Wintry Mix in the Northern Plains and Northeast

Severe thunderstorms and flash flooding are possible across the central U.S. through Saturday. Large hail, damaging winds, and tornadoes are all possible. There is an increased threat for wildfire development in the southern to central High Plains. A wintry mix of snow, sleet and freezing rain are forecast across portions of the northern Plains and central New England into early Friday morning. Read More >

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 W 9 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 05 Mar 06:20 PM PST
Extended Forecast for

Castro Valley CA

  • Tonight

    Tonight: Clear, with a low around 49. North wind 8 to 16 mph, with gusts as high as 36 mph.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74. North wind 10 to 16 mph, with gusts as high as 34 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 53. North northeast wind around 9 mph, with gusts as high as 31 mph.

    Low: 53 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Northeast wind 11 to 13 mph, with gusts as high as 30 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 51. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 51 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Sunday Night

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

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

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

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 49. North wind 8 to 16 mph, with gusts as high as 36 mph.
Friday
Sunny, with a high near 74. North wind 10 to 16 mph, with gusts as high as 34 mph.
Friday Night
Clear, with a low around 53. North northeast wind around 9 mph, with gusts as high as 31 mph.
Saturday
Sunny, with a high near 78. Northeast wind 11 to 13 mph, with gusts as high as 30 mph.
Saturday Night
Clear, with a low around 51. North northeast wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.71°N 122.08°W (Elev. 397 ft)
12:26 pm PST Mar 5, 2026
6pm PST Mar 5, 2026-6pm PDT Mar 12, 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