Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

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

Clear

48°F

9°C

Humidity 81%
Wind Speed ENE 13 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 43°F (6°C)
Visibility 8.00 mi
Wind Chill43°F (6°C)
Last update 08 Dec 12:35 PM PST
Extended Forecast for

4 Miles E Union City CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. North northeast wind around 6 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. Light north northeast wind.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. North wind 3 to 6 mph.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65. North wind around 6 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 57. North northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 46. Light north northeast wind.
Tuesday
Sunny, with a high near 61. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 47. Light and variable wind.
Wednesday
Sunny, with a high near 65. North wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Union City CA
 37.6°N 121.93°W (Elev. 161 ft)
12:26 pm PST Dec 8, 2025
12pm PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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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