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

Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Mostly Cloudy

61°F

16°C

Humidity 77%
Wind Speed SW 6 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 03 Aug 09:20 PM PDT
Extended Forecast for

2 Miles SW Union City CA

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 73. West wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 73 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Southwest wind 5 to 9 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 73. West wind 6 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 55. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 75. Southwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 57. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Union City CA
 37.58°N 122.04°W (Elev. 121 ft)
Last Update:
8:40 pm PDT Aug 3, 2025
Forecast Valid:
9pm PDT Aug 3, 2025-6pm PDT Aug 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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