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Record Temperatures Expected Across the Southern US; Fire Weather Concerns in the Central US

Unseasonably warm temperatures continue today across the southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Dry and gusty winds will produce elevated to critical fire weather in the central and southern Plains and elevated conditions over portions of the Desert Southwest on Friday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

55°F

13°C

Humidity 52%
Wind Speed ENE 5 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 27 Mar 03:54 AM PDT
Extended Forecast for

Castro Valley CA

  • Today

    Today: Partly sunny, with a high near 83. Calm wind becoming north northeast around 6 mph in the morning.

    High: 83 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. West wind around 6 mph becoming light and variable in the evening.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Southwest wind 3 to 7 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

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

    Low: 54 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 74.

    High: 74 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 83. Calm wind becoming north northeast around 6 mph in the morning.
Tonight
Mostly clear, with a low around 51. West wind around 6 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 79. Calm wind becoming west 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 50. Southwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 84. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 74.
Monday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 54.
Tuesday
A chance of rain. Mostly cloudy, with a high near 66.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Wednesday
A chance of rain. Partly sunny, with a high near 64.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
Thursday
A chance of rain. Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
Last Update:
1:26 am PDT Mar 27, 2026
Forecast Valid:
4am PDT Mar 27, 2026-6pm PDT Apr 2, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation