National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

73°F

23°C

Humidity 49%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 04 Oct 09:05 AM PDT
Extended Forecast for

3 Miles E Union City CA

Heat Advisory October 4, 09:20am until October 7, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 4, 09:20am until October 7, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Today

    High: 92 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. West northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny, with a high near 92. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 67. Light and variable wind.
Monday
Sunny, with a high near 90. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 66. West northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 67.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 62.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Union City CA
 37.59°N 121.96°W (Elev. 1007 ft)
Last Update:
1:46 am PDT Oct 4, 2026
Forecast Valid:
9am PDT Oct 4, 2026-6pm PDT Oct 10, 2026
 
Forecast Discussion
 
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Additional Resources

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