Rare Southern U.S. Winter Storm; Dangerous Cold Weather For Much of the Eastern U.S.; Critical Fire Weather for Southern California

A rare winter storm impacting the Southern U.S. will move offshore Wednesday morning. Behind the storm, arctic air will continue encompassing the eastern two-thirds of the Nation with only a slow return to normal temperatures expected by the end of the week. Moderate to strong Santa Ana winds and low humidity will maintain Critical fire weather conditions in southern California into Thursday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

50°F

10°C

Humidity 49%
Wind Speed NE 4 MPH
Barometer 30.45 in (1031.16 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 21 Jan 09:35 PM PST
Extended Forecast for

3 Miles SE Union City CA

Frost Advisory January 22, 12:00am until January 22, 10:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 37. Northeast wind 3 to 5 mph.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. Calm wind.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Light east southeast wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 10am.  Sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 37. Northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 65. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 39. Calm wind.
Thursday
Sunny, with a high near 67. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
Partly cloudy, with a low around 43. Light east southeast wind.
Friday
Partly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 41.
Saturday
A slight chance of rain before 10am. Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 37.
Monday
Sunny, with a high near 61.
Monday Night
Clear, with a low around 37.
Tuesday
Sunny, with a high near 62.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
12:26 pm PST Jan 21, 2025
9pm PST Jan 21, 2025-6pm PST Jan 28, 2025
 
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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