Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

59°F

15°C

Humidity 77%
Wind Speed WSW 6 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Mar 11:00 AM PDT
Extended Forecast for

Castro Valley CA

  • Today

    Today: Sunny, with a high near 77. West wind 6 to 9 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. West southwest wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. North wind 3 to 7 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. North northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. West wind 6 to 9 mph.
Tonight
Mostly clear, with a low around 51. West southwest wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 83. North wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 56. North northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 60.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Castro Valley CA
 37.72°N 122.05°W (Elev. 397 ft)
1:28 am PDT Mar 14, 2026
11am PDT Mar 14, 2026-6pm PDT Mar 20, 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