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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

67°F

19°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 20 Mar 11:54 PM PDT
Extended Forecast for

2 Miles WSW Union City CA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Light north northwest wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. West wind 5 to 8 mph becoming calm after midnight.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 49. West northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Calm wind.
Saturday
Mostly sunny, with a high near 77. Light north northwest wind becoming west northwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 49. West wind 5 to 8 mph becoming calm after midnight.
Sunday
Sunny, with a high near 76. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 49. West northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Union City CA
 37.58°N 122.04°W (Elev. 121 ft)
Last Update:
8:21 pm PDT Mar 20, 2026
Forecast Valid:
12am PDT Mar 21, 2026-6pm PDT Mar 27, 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