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.

Clear

68°F

20°C

Humidity 68%
Wind Speed WNW 8 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 57°F (14°C)
Visibility 8.00 mi
Last update 24 Aug 10:35 AM PDT
Extended Forecast for

3 Miles WSW Union City CA

  • Today

    Today: Sunny, with a high near 73. Northwest wind 7 to 16 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 59. Northwest wind 5 to 14 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 72. Light west northwest wind increasing to 8 to 13 mph in the afternoon.

    High: 72 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59. Northwest wind 6 to 11 mph becoming light west southwest in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Light west southwest wind becoming west 5 to 9 mph in the afternoon.

    High: 74 °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 73.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 73. Northwest wind 7 to 16 mph.
Tonight
Increasing clouds, with a low around 59. Northwest wind 5 to 14 mph, with gusts as high as 18 mph.
Tuesday
Mostly cloudy, with a high near 72. Light west northwest wind increasing to 8 to 13 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 59. Northwest wind 6 to 11 mph becoming light west southwest in the evening.
Wednesday
Mostly sunny, with a high near 74. Light west southwest wind becoming west 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Union City CA
 37.58°N 122.07°W (Elev. 135 ft)
Last Update:
2:36 am PDT Aug 24, 2026
Forecast Valid:
10am 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation