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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Mostly Cloudy

65°F

18°C

Humidity 75%
Wind Speed W 4 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 24 Aug 08:54 AM PDT
Extended Forecast for

2 Miles SSE Union City CA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 79. West northwest wind 5 to 14 mph.

    High: 79 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West northwest wind 8 to 13 mph becoming light.

    Low: 59 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 77. Light west wind increasing to 5 to 9 mph in the afternoon.

    High: 77 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59. West northwest wind 5 to 10 mph becoming light west in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 75.

    High: 75 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 79. West northwest wind 5 to 14 mph.
Tonight
Increasing clouds, with a low around 59. West northwest wind 8 to 13 mph becoming light.
Tuesday
Mostly cloudy, with a high near 77. Light west wind increasing to 5 to 9 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 59. West northwest wind 5 to 10 mph becoming light west in the evening.
Wednesday
Mostly sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Partly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Union City CA
 37.57°N 121.98°W (Elev. 43 ft)
Last Update:
2:36 am PDT Aug 24, 2026
Forecast Valid:
9am PDT Aug 24, 2026-6pm PDT Aug 30, 2026
 
Forecast Discussion
 
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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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation