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.

Mist

46°F

8°C

Humidity 93%
Wind Speed NE 5 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 45°F (7°C)
Visibility 6.00 mi
Wind Chill44°F (7°C)
Last update 25 Nov 06:35 AM PST
Extended Forecast for

2 Miles SW Castro Valley CA

Dense Fog Advisory November 25, 06:50am until November 25, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 25, 06:50am until November 25, 11:00am

    NOW until 11:00am Tue

    Dense Fog Advisory

  • Today

    High: 66 °F

    Patchy Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. East northeast wind 3 to 5 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Northeast wind around 6 mph.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. East northeast wind 3 to 5 mph.

    Low: 46 °F

    Partly Cloudy

  • Thanksgiving Day

    Thanksgiving Day: Mostly sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

Detailed Forecast

Today
Patchy dense fog between 7am and 9am. Otherwise, sunny, with a high near 66. Calm wind becoming north northeast around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 44. East northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 66. Northeast wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 46. East northeast wind 3 to 5 mph.
Thanksgiving Day
Mostly sunny, with a high near 66. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Castro Valley CA
 37.69°N 122.1°W (Elev. 174 ft)
Last Update:
1:17 am PST Nov 25, 2025
Forecast Valid:
6am PST Nov 25, 2025-6pm PST Dec 1, 2025
 
Forecast Discussion
 
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