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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Partly Cloudy

55°F

13°C

Humidity 76%
Wind Speed W 10 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 May 07:30 AM PDT
Extended Forecast for

Union City CA

  • Today

    Today: Mostly sunny, with a high near 61. West wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 50. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 26 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 67. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 67 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 52. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 67. South wind 6 to 8 mph becoming west in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 61. West wind 13 to 16 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 50. West wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 26 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 67. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 52. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 67. South wind 6 to 8 mph becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.61°N 122°W (Elev. 594 ft)
Last Update:
2:16 am PDT May 26, 2026
Forecast Valid:
7am PDT May 26, 2026-6pm PDT Jun 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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