Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Overcast

52°F

11°C

Humidity 89%
Wind Speed E 5 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 13 Apr 05:54 AM PDT
Extended Forecast for

Union City CA

  • Today

    Today: Mostly sunny, with a high near 60. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 48. West wind 5 to 9 mph becoming south southwest after midnight.

    Low: 48 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. West southwest wind 5 to 10 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 61. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 60. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 48. West wind 5 to 9 mph becoming south southwest after midnight.
Tuesday
Mostly sunny, with a high near 60. West southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 47. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday
Partly sunny, with a high near 61. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 64.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A slight chance of rain. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.61°N 122°W (Elev. 594 ft)
1:26 am PDT Apr 13, 2026
6am PDT Apr 13, 2026-6pm PDT Apr 19, 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