Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

Mist

45°F

7°C

Humidity 93%
Wind Speed E 12 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Wind Chill39°F (4°C)
Last update 10 Dec 07:20 PM PST
Extended Forecast for

7 Miles SW Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 46. North northeast wind 5 to 7 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61. North wind 5 to 8 mph becoming calm  in the afternoon.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. North northeast wind 6 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60. North northeast wind around 10 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44. North northeast wind 7 to 9 mph.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

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

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 46. North northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 61. North wind 5 to 8 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 46. North northeast wind 6 to 10 mph.
Friday
Sunny, with a high near 60. North northeast wind around 10 mph.
Friday Night
Mostly clear, with a low around 44. North northeast wind 7 to 9 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A slight chance of showers after 10am. Partly sunny, with a high near 57.
Monday Night
A chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Patchy fog. Otherwise, mostly cloudy, with a high near 58.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Lake Berryessa CA
 38.51°N 122.34°W (Elev. 699 ft)
12:37 pm PST Dec 10, 2025
7pm PST Dec 10, 2025-6pm PST Dec 17, 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