Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

43°F

6°C

Humidity 79%
Wind Speed ESE 4 MPH
Barometer 30.3 in (1026.08 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 29 Dec 06:54 AM PST
Extended Forecast for

Union City CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  • Today

    Today: Sunny, with a high near 57. Northeast wind 5 to 14 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. Northeast wind 5 to 8 mph.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 55. Northeast wind around 7 mph.

    High: 55 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45. East northeast wind 9 to 13 mph.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 4pm.  Mostly cloudy, with a high near 51. East northeast wind 5 to 13 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain.  Low around 47. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain

  • New Year's Day

    New Year's Day: Rain.  High near 55. Chance of precipitation is 80%.

    High: 55 °F

    Rain

  • Thursday Night

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

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: Rain likely.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 57. Northeast wind 5 to 14 mph.
Tonight
Clear, with a low around 39. Northeast wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 55. Northeast wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 45. East northeast wind 9 to 13 mph.
Wednesday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 51. East northeast wind 5 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 47. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
New Year's Day
Rain. High near 55. Chance of precipitation is 80%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 50.
Friday
Rain likely. Mostly cloudy, with a high near 57.
Friday Night
Rain likely. Mostly cloudy, with a low around 49.
Saturday
Rain likely. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 47.
Sunday
A chance of rain. Partly sunny, with a high near 55.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.61°N 122°W (Elev. 594 ft)
6:44 am PST Dec 29, 2025
7am PST Dec 29, 2025-6pm PST Jan 4, 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