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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

62°F

17°C

Humidity 57%
Wind Speed SW 8 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Nov 02:54 PM PST
Extended Forecast for

2 Miles SE Lake Berryessa CA

  • Tonight

    Tonight: Clear, with a low around 47. Calm wind.

    Low: 47 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Areas of fog before noon. Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: Patchy fog before 7am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

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

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 47. Calm wind.
Saturday
Sunny, with a high near 62. Calm wind.
Saturday Night
Mostly clear, with a low around 46. Calm wind.
Sunday
Areas of fog before noon. Otherwise, sunny, with a high near 58. Calm wind.
Sunday Night
Mostly clear, with a low around 46. Calm wind.
Monday
Patchy fog before 7am. Otherwise, sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 47.
Thanksgiving Day
Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 48.
Friday
A slight chance of rain. Partly sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Lake Berryessa CA
 38.55°N 122.21°W (Elev. 440 ft)
Last Update:
12:33 pm PST Nov 21, 2025
Forecast Valid:
3pm PST Nov 21, 2025-6pm PST Nov 28, 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