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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

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

Clear

54°F

12°C

Humidity 76%
Wind Speed NE 6 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Nov 07:20 PM PST
Extended Forecast for

Union City CA

  • Tonight

    Tonight: Clear, with a low around 46. Calm wind.

    Low: 46 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 61. Calm wind becoming northwest around 5 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 46. Light south southwest wind.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 46. Calm wind.
Saturday
Sunny, with a high near 61. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 46. Calm wind.
Sunday
Mostly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 46. Light south southwest wind.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 45.
Thanksgiving Day
Mostly sunny, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
A slight chance of rain. Mostly cloudy, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union City CA
 37.61°N 122°W (Elev. 594 ft)
Last Update:
12:33 pm PST Nov 21, 2025
Forecast Valid:
7pm PST Nov 21, 2025-6pm PST Nov 28, 2025
 
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