Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. 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 NW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 16 Mar 07:20 PM PDT
Extended Forecast for

2 Miles NNW Castro Valley CA

Heat Advisory until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind becoming north around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 60. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 58. Light and variable wind.
Tuesday
Sunny, with a high near 90. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 60. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 91.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 72.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Castro Valley CA
 37.73°N 122.08°W (Elev. 614 ft)
1:25 pm PDT Mar 16, 2026
7pm PDT Mar 16, 2026-6pm PDT Mar 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database