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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

55°F

13°C

Humidity 87%
Wind Speed SW 11 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 May 09:20 PM PDT
Extended Forecast for

Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 54. West wind 5 to 8 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. West wind around 5 mph becoming calm in the morning.

    High: 79 °F

    Sunny

  • Wednesday Night

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

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 57. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 54. West wind 5 to 8 mph.
Wednesday
Sunny, with a high near 79. West wind around 5 mph becoming calm in the morning.
Wednesday Night
Mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 57. West southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 87.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 83.
Sunday Night
Clear, with a low around 59.
Monday
Sunny, with a high near 88.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Berryessa CA
 38.57°N 122.24°W (Elev. 732 ft)
Last Update:
9:22 pm PDT May 12, 2026
Forecast Valid:
9pm PDT May 12, 2026-6pm PDT May 19, 2026
 
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