Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Mist

48°F

9°C

Humidity 87%
Wind Speed ESE 3 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 45°F (7°C)
Visibility 3.00 mi
Last update 31 Jan 08:20 AM PST
Extended Forecast for

3 Miles WSW Union City CA

Coastal Flood Advisory January 31, 08:33am until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory January 31, 08:33am until February 1, 12:00pm

    NOW until 12:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 66 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 63. Calm wind becoming west northwest 5 to 9 mph in the morning.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Today
Partly sunny, with a high near 66. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 45. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 63. Calm wind becoming west northwest 5 to 9 mph in the morning.
Sunday Night
Partly cloudy, with a low around 47. West northwest wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Union City CA
 37.58°N 122.07°W (Elev. 135 ft)
8:10 am PST Jan 31, 2026
8am PST Jan 31, 2026-6pm PST Feb 6, 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