Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

63°F

17°C

Humidity 82%
Wind Speed SSW 8 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 20 Sep 06:20 PM PDT
Extended Forecast for

6 Miles SE Lake Berryessa CA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Calm wind.
Monday
Sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Calm wind.
Tuesday Night
Clear, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Lake Berryessa CA
 38.51°N 122.2°W (Elev. 541 ft)
1:25 pm PDT Sep 20, 2026
6pm PDT Sep 20, 2026-6pm PDT Sep 27, 2026
 
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