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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Livermore, Livermore Municipal Airport (KLVK)

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

Overcast

51°F

11°C

Humidity 79%
Wind Speed S 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 Apr 03:53 AM PDT
Extended Forecast for

4 Miles E Union City CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 62. West southwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 62 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. West wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 65. North wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46. North wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 69. North northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 69 °F

    Sunny

  • Friday Night

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

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 62. West southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 46. West wind 8 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 65. North wind 9 to 17 mph, with gusts as high as 29 mph.
Thursday Night
Clear, with a low around 46. North wind 7 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 69. North northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 48.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
A slight chance of rain. Partly sunny, with a high near 68.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 51.
Monday
A chance of rain. Partly sunny, with a high near 64.
Monday Night
A chance of rain. Mostly cloudy, with a low around 51.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
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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:
1:56 am PDT Apr 15, 2026
Forecast Valid:
4am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation