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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

63°F

17°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 57°F (14°C)
Visibility 8.00 mi
Last update 22 Aug 09:54 PM PDT
Extended Forecast for

3 Miles WSW Union City CA

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind becoming north northwest 5 to 7 mph after midnight.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Light northwest wind becoming west northwest 8 to 13 mph in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. Northwest wind 6 to 11 mph.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. West wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Calm wind becoming north northwest 5 to 7 mph after midnight.
Sunday
Partly sunny, with a high near 74. Light northwest wind becoming west northwest 8 to 13 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 60. Northwest wind 6 to 11 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 59. West wind 5 to 13 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Union City CA
 37.58°N 122.07°W (Elev. 135 ft)
Last Update:
3:12 pm PDT Aug 22, 2026
Forecast Valid:
10pm PDT Aug 22, 2026-6pm PDT Aug 29, 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