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 93%
Wind Speed WSW 8 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 May 01:15 AM PDT
Extended Forecast for

Napa CA

  • Overnight

    Overnight: Mostly clear, with a low around 51. South southwest wind 3 to 5 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light southwest wind becoming west southwest 5 to 9 mph in the morning.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 49. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 51. South southwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 77. Light southwest wind becoming west southwest 5 to 9 mph in the morning.
Wednesday Night
Clear, with a low around 49. Southwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 51. West southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 52.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.3°N 122.26°W (Elev. 82 ft)
Last Update:
1:26 am PDT May 13, 2026
Forecast Valid:
1am PDT May 13, 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