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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

61°F

16°C

Humidity 51%
Wind Speed N 3 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 12 Jan 02:54 PM PST
Extended Forecast for

3 Miles SE Union City CA

  • Tonight

    Tonight: Mostly clear, with a low around 41. Northeast wind 5 to 9 mph becoming light.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Northeast wind 5 to 7 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Northeast wind 3 to 7 mph.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 44. Light east northeast wind.

    Low: 44 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

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

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

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

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 41. Northeast wind 5 to 9 mph becoming light.
Tuesday
Sunny, with a high near 65. Northeast wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 42. Northeast wind 3 to 7 mph.
Wednesday
Sunny, with a high near 65. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 44. Light east northeast wind.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 46.
M.L.King Day
Sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
Last Update:
12:41 pm PST Jan 12, 2026
Forecast Valid:
3pm PST Jan 12, 2026-6pm PST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation