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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

43°F

6°C

Humidity 93%
Wind Speed E 10 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 41°F (5°C)
Visibility 5.00 mi
Wind Chill37°F (3°C)
Last update 05 Dec 09:15 PM PST
Extended Forecast for

7 Miles SW Lake Berryessa CA

Cold Weather Advisory December 5, 09:42pm until December 6, 08:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory December 5, 09:42pm until December 6, 08:00am

    NOW until 8:00am Sat

    Cold Weather Advisory

  • Tonight

    Low: 44 °F

    Patchy Fog

  • Saturday

    Saturday: Sunny, with a high near 60. North wind around 5 mph becoming calm.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before 9pm. Otherwise, mostly clear, with a low around 45. Light north wind.

    Low: 45 °F

    Patchy Fog
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60. North wind around 5 mph becoming calm in the morning.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. North wind around 5 mph.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Tonight
Patchy fog between midnight and 1am. Otherwise, mostly clear, with a low around 44. Calm wind becoming northeast around 5 mph after midnight.
Saturday
Sunny, with a high near 60. North wind around 5 mph becoming calm.
Saturday Night
Patchy fog before 9pm. Otherwise, mostly clear, with a low around 45. Light north wind.
Sunday
Mostly sunny, with a high near 60. North wind around 5 mph becoming calm in the morning.
Sunday Night
Mostly clear, with a low around 44. North wind around 5 mph.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Lake Berryessa CA
 38.51°N 122.34°W (Elev. 699 ft)
Last Update:
8:05 pm PST Dec 5, 2025
Forecast Valid:
9pm PST Dec 5, 2025-6pm PST Dec 12, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation