Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

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

Rain

52°F

11°C

Humidity 81%
Wind Speed WSW 6 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 26 Dec 07:00 PM PST
Extended Forecast for

4 Miles E Union City CA

  • Tonight

    Tonight: A 20 percent chance of showers between 2am and 3am.  Mostly cloudy, with a low around 44. Southwest wind 7 to 9 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 50. West wind around 7 mph becoming north northwest in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. North northeast wind around 6 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 50. North northeast wind around 7 mph.

    High: 50 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. East northeast wind around 6 mph.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers between 2am and 3am. Mostly cloudy, with a low around 44. Southwest wind 7 to 9 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 50. West wind around 7 mph becoming north northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 38. North northeast wind around 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 50. North northeast wind around 7 mph.
Sunday Night
Clear, with a low around 37. East northeast wind around 6 mph.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 43.
New Year's Day
A chance of showers. Mostly cloudy, with a high near 54.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 46.
Friday
A chance of showers. Partly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Union City CA
 37.6°N 121.93°W (Elev. 161 ft)
12:27 pm PST Dec 26, 2025
7pm PST Dec 26, 2025-6pm PST Jan 2, 2026
 
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