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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. Some snow and a wintry mix is occurring today to the north. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

Lat: 37.69278°NLon: 121.81444°WElev: 397.0ft.

Mist

36°F

2°C

Humidity 93%
Wind Speed ENE 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 34°F (1°C)
Visibility 4.00 mi
Last update 05 Dec 05:20 AM PST
Extended Forecast for

4 Miles E Union City CA

Coastal Flood Advisory December 5, 05:31am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 5, 05:31am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. Light and variable wind becoming north northeast around 6 mph after midnight.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. North northeast wind 5 to 8 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Northeast wind 6 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 61. Northeast wind 5 to 9 mph becoming light and variable.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 59. North wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 44. Light and variable wind becoming north northeast around 6 mph after midnight.
Saturday
Sunny, with a high near 61. North northeast wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 46. Northeast wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 61. Northeast wind 5 to 9 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Union City CA
 37.6°N 121.93°W (Elev. 161 ft)
Last Update:
1:40 am PST Dec 5, 2025
Forecast Valid:
5am PST Dec 5, 2025-6pm PST Dec 11, 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