Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

66°F

19°C

Humidity 17%
Wind Speed NE 9 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 17 Apr 11:15 AM PDT
Extended Forecast for

Union City CA

  • Today

    Today: Sunny, with a high near 72. West northwest wind 6 to 9 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 64.

    High: 64 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 72. West northwest wind 6 to 9 mph.
Tonight
Partly cloudy, with a low around 47. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 77. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. West northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 51.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 70.
Monday Night
Rain likely. Mostly cloudy, with a low around 53.
Tuesday
Rain before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.59°N 122.02°W (Elev. 164 ft)
11:26 am PDT Apr 17, 2026
11am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
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