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Widespread Showers and Thunderstorms in Southern California and the Southern Plains into the Mississippi Valley

Isolated strong to severe thunderstorms and widespread heavy rainfall are possible across the southern Plains into Arkansas. Widespread showers with a slight chance of thunderstorms are possible across southern California. Urban flooding, rock and mudslides as well as minor debris flows near burn scars are possible. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mostly Cloudy

46°F

8°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Nov 09:20 PM PST
Extended Forecast for

2 Miles WSW Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 44. North wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. North wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. Light north wind.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59. North wind around 6 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 44. North wind 3 to 8 mph. Winds could gust as high as 18 mph.
Friday
Sunny, with a high near 59. North wind 5 to 10 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 46. Light north wind.
Saturday
Sunny, with a high near 59. North wind around 6 mph.
Saturday Night
Mostly clear, with a low around 44. Calm wind.
Sunday
Sunny, with a high near 56.
Sunday Night
Patchy fog before 9pm. Otherwise, partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 46.
Thanksgiving Day
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Lake Berryessa CA
 38.56°N 122.3°W (Elev. 1604 ft)
Last Update:
2:11 pm PST Nov 20, 2025
Forecast Valid:
9pm PST Nov 20, 2025-6pm PST Nov 27, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation