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

Cold Temperatures Continue in the Southeast; Snow in the Central Appalachians and Ohio Valley; Rain and Thunderstorms in the Southeast

Cold temperatures will persist across Florida and the Southeast through Tuesday, then milder conditions are expected beginning Wednesday. A frontal system is expected to bring wintry precipitation to the Central Appalachians and portions of the Mid-Atlantic Tuesday into Wednesday, meanwhile, showers and thunderstorms are expected along the Gulf Coast and Southeast. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

48°F

9°C

Humidity 76%
Wind Speed ENE 3 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 03 Feb 02:35 AM PST
Extended Forecast for

Union City CA

  • Overnight

    Overnight: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Calm wind becoming north around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Light east wind.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Overnight
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Sunny, with a high near 72. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 45. Light east wind.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 67.
Friday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 48.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 66.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 47.
Sunday
A slight chance of rain. Areas of fog. Otherwise, mostly cloudy, with a high near 64.
Sunday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 47.
Monday
A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.58°N 122.04°W (Elev. 121 ft)
Last Update:
2:08 am PST Feb 3, 2026
Forecast Valid:
2am PST Feb 3, 2026-6pm PST Feb 9, 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