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

61°F

16°C

Humidity 51%
Wind Speed W 8 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 13 Apr 01:05 PM PDT
Extended Forecast for

2 Miles WSW Union City CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. West northwest wind 6 to 10 mph.

    High: 63 °F

    Sunny

  • Tonight

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

    Low: 48 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 64 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 47. West southwest wind 5 to 11 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Light west southwest wind becoming west 6 to 11 mph in the morning.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 63. West northwest wind 6 to 10 mph.
Tonight
Increasing clouds, with a low around 48. West northwest wind 5 to 9 mph becoming light west southwest after midnight.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 64. Light west southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Increasing clouds, with a low around 47. West southwest wind 5 to 11 mph.
Wednesday
Partly sunny, with a high near 65. Light west southwest wind becoming west 6 to 11 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Sunny, with a high near 67.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
A slight chance of showers. Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Union City CA
 37.58°N 122.04°W (Elev. 121 ft)
12:41 pm PDT Apr 13, 2026
1pm 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