Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

48°F

9°C

Humidity 87%
Wind Speed E 14 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 11 Dec 12:35 PM PST
Extended Forecast for

5 Miles SSW Lake Berryessa CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 61. North northeast wind 5 to 7 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 44. North northeast wind 5 to 7 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61. Northeast wind 6 to 8 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. East wind 3 to 6 mph.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61. East wind around 5 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

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

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of rain after 4pm.  Partly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 61. North northeast wind 5 to 7 mph.
Tonight
Mostly clear, with a low around 44. North northeast wind 5 to 7 mph.
Friday
Sunny, with a high near 61. Northeast wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 43. East wind 3 to 6 mph.
Saturday
Sunny, with a high near 61. East wind around 5 mph.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A slight chance of rain after 4pm. Partly sunny, with a high near 60.
Monday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Partly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
12:26 pm PST Dec 11, 2025
12pm PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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