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.

Mostly Cloudy

58°F

14°C

Humidity 77%
Wind Speed W 9 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 18 Oct 10:54 PM PDT
Extended Forecast for

3 Miles SE Union City CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. West wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 66. West wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 66 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 50. West wind 5 to 9 mph becoming calm after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 68 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely. Patchy fog between 8am and noon. Otherwise, cloudy, with a high near 67. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 67 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly before 11pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66.

    High: 66 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. West wind 7 to 11 mph, with gusts as high as 21 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 66. West wind 6 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 50. West wind 5 to 9 mph becoming calm after midnight.
Tuesday
Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
A 50 percent chance of showers after 11pm. Mostly cloudy, with a low around 53. Northwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely. Patchy fog between 8am and noon. Otherwise, cloudy, with a high near 67. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A 50 percent chance of showers, mainly before 11pm. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.
Thursday
A slight chance of showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 70.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 51.
Sunday
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:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
Last Update:
9:57 pm PDT Oct 18, 2026
Forecast Valid:
11pm PDT Oct 18, 2026-6pm PDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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