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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

50°F

10°C

Humidity 82%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 45°F (7°C)
Visibility 7.00 mi
Last update 05 Dec 06:54 PM PST
Extended Forecast for

3 Miles SE Union City CA

Coastal Flood Advisory December 5, 07:11pm until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 5, 07:11pm until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Tonight

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. Light north northeast wind.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 44. Calm wind.
Saturday
Sunny, with a high near 62. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 45. Light north northeast wind.
Sunday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 63. Calm wind becoming west northwest around 5 mph in the afternoon.
Sunday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 46. Calm wind.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 66.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 48.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
Last Update:
1:00 pm PST Dec 5, 2025
Forecast Valid:
7pm PST Dec 5, 2025-6pm PST Dec 12, 2025
 
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