Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

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

Clear

52°F

11°C

Humidity 71%
Wind Speed SW 8 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 43°F (6°C)
Visibility 8.00 mi
Last update 21 Jan 11:00 AM PST
Extended Forecast for

4 Miles ESE Union City CA

  • Today

    Today: Cloudy, with a high near 58. West wind around 5 mph.

    High: 58 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Light and variable wind becoming east southeast around 5 mph.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 57. West wind 3 to 6 mph.

    High: 57 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 45. South southwest wind around 6 mph.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 56. South wind around 6 mph becoming north northwest in the afternoon.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, with a high near 58. West wind around 5 mph.
Tonight
Mostly cloudy, with a low around 47. Light and variable wind becoming east southeast around 5 mph.
Thursday
Partly sunny, with a high near 57. West wind 3 to 6 mph.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 45. South southwest wind around 6 mph.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 56. South wind around 6 mph becoming north northwest in the afternoon.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Union City CA
 37.58°N 121.93°W (Elev. 1017 ft)
2:13 am PST Jan 21, 2026
11am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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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