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.

Overcast

57°F

14°C

Humidity 67%
Wind Speed W 12 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Oct 08:35 AM PDT
Extended Forecast for

Union City CA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 65. West wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 65 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. West wind 5 to 9 mph becoming light and variable after midnight.

    Low: 51 °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, mostly cloudy, with a high near 67. Light and variable wind. 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 11pm. Otherwise, mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 20 percent 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: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 65. West wind 7 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 51. West wind 5 to 9 mph becoming light and variable 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, mostly cloudy, with a high near 67. Light and variable wind. 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 11pm. Otherwise, mostly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 66.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 69.
Saturday Night
A slight chance of rain. Mostly clear, with a low around 51.
Sunday
A slight chance of rain. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.59°N 122.02°W (Elev. 164 ft)
Last Update:
2:37 am PDT Oct 19, 2026
Forecast Valid:
8am PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
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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