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

Areas of Severe Thunderstorms and Excessive Rainfall Friday

Severe thunderstorms capable of large hail and damaging wind gusts appear possible over the central and southern High Plains and eastern Kansas into Missouri Friday afternoon and evening. Rounds of storms Friday ahead of a slow moving frontal boundary will bring locally heavy rainfall and scattered flash flooding potential to the Mid-Mississippi, Ohio, and Tennessee Valleys, and the Appalachians. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

57°F

14°C

Humidity 87%
Wind Speed SSW 12 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Jul 12:00 AM PDT
Extended Forecast for

6 Miles SSW Lake Berryessa CA

  • Overnight

    Overnight: Clear, with a low around 55. West southwest wind 3 to 5 mph.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83. South southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. West southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 55. West southwest wind 3 to 5 mph.
Friday
Sunny, with a high near 83. South southwest wind 3 to 8 mph. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 54. West southwest wind 5 to 7 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 61. Southwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 87.
Sunday Night
Mostly cloudy, with a low around 65.
Monday
Partly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Lake Berryessa CA
 38.5°N 122.28°W (Elev. 1355 ft)
Last Update:
11:26 pm PDT Jul 9, 2026
Forecast Valid:
12am PDT Jul 10, 2026-6pm PDT Jul 16, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation