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

Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

73°F

23°C

Humidity 49%
Wind Speed SSW 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 17 Oct 05:20 PM PDT
Extended Forecast for

2 Miles E Lake Berryessa CA

  • Tonight

    Tonight: Clear, with a low around 55. South southeast wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Light and variable wind.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South southwest wind 5 to 7 mph becoming light and variable in the evening.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 75. West northwest wind around 5 mph becoming calm.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. South southwest wind 5 to 14 mph becoming north in the evening.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 55. South southeast wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 73. Light and variable wind.
Saturday Night
Clear, with a low around 57. South southwest wind 5 to 7 mph becoming light and variable in the evening.
Sunday
Sunny, with a high near 75. West northwest wind around 5 mph becoming calm.
Sunday Night
Mostly clear, with a low around 58. South southwest wind 5 to 14 mph becoming north in the evening.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Patchy fog. Otherwise, sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A chance of rain. Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Lake Berryessa CA
 38.57°N 122.21°W (Elev. 440 ft)
Last Update:
1:26 pm PDT Oct 17, 2025
Forecast Valid:
5pm PDT Oct 17, 2025-6pm PDT Oct 24, 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