Showers and Thunderstorms for the East; Cooler Temperatures Return Sunday into Early Week

Showers and thunderstorms will accompany a cold front that will move across the eastern third of the country through Sunday. In the wake of this front, cooler temperatures will follow for most areas east of the Rockies. A wet pattern is expected to unfold across most of Florida this week with a persistent onshore flow and increase rip currents. For Hawaii, a return toward more rain the week ahead. 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 40%
Wind Speed W 9 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Last update 05 Apr 12:35 PM PDT
Extended Forecast for

Castro Valley CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 86. West wind 3 to 6 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West southwest wind around 6 mph.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 72. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 72 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. West southwest wind 6 to 9 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain, mainly after 11am.  Partly sunny, with a high near 72.

    High: 72 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 86. West wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 51. West southwest wind around 6 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 72. West wind 5 to 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 50. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 71. West southwest wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
A chance of rain, mainly after 11am. Partly sunny, with a high near 72.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 54.
Friday
Rain likely. Partly sunny, with a high near 70.
Friday Night
A chance of rain. Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
11:27 am PDT Apr 5, 2026
12pm PDT Apr 5, 2026-6pm PDT Apr 11, 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