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

Isolated Severe Thunderstorms and Critical Fire Weather Tuesday

Isolated severe thunderstorms with strong wind gusts and hail will be possible Tuesday from parts of central Plains northeastward into the Midwest. Additional storms capable of damaging winds will be possible across the eastern Florida peninsula. Elevated to critical fire weather including gusty winds and low relative humidity is forecast again Tuesday over much of the northern Great Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 93%
Wind Speed S 8 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 May 09:00 PM PDT
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 50. Light south wind.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 75 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. West southwest wind 3 to 7 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 76. Calm wind becoming west 5 to 8 mph in the morning.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 49. West wind 5 to 8 mph becoming calm in the evening.

    Low: 49 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 50. Light south wind.
Tuesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 50. West southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 76. Calm wind becoming west 5 to 8 mph in the morning.
Wednesday Night
Clear, with a low around 49. West wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83.
Thursday Night
Clear, with a low around 51.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 82.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.31°N 122.29°W (Elev. 30 ft)
Last Update:
1:26 pm PDT May 11, 2026
Forecast Valid:
9pm PDT May 11, 2026-6pm PDT May 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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