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

Hayward, Hayward Air Terminal (KHWD)

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

Clear

64°F

18°C

Humidity 51%
Wind Speed WNW 19 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Oct 03:54 PM PDT
Extended Forecast for

2 Miles W Castro Valley CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 67. Calm wind becoming west around 6 mph in the afternoon.

    High: 67 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 66. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 53. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. West wind 5 to 10 mph becoming light and variable in the evening.
Tuesday
Mostly cloudy, with a high near 67. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 54. West northwest wind around 5 mph becoming calm in the evening.
Wednesday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 66. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 53. West wind around 5 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of showers. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 52.
Monday
A slight chance of showers. Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Castro Valley CA
 37.71°N 122.11°W (Elev. 397 ft)
Last Update:
1:47 pm PDT Oct 19, 2026
Forecast Valid:
4pm PDT Oct 19, 2026-6pm PDT Oct 26, 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