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

Napa, Napa County Airport (KAPC)

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

Clear

48°F

9°C

Humidity 66%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 17 Oct 08:00 AM PDT
Extended Forecast for

Napa CA

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: Areas of fog before 10am. Otherwise, sunny, with a high near 74. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 74 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 46. West southwest wind 6 to 8 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 65. West southwest wind 5 to 9 mph.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy
    then Areas
    Fog

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 11am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers and
    Areas Fog

  • Tuesday Night

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

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 70.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 48. Calm wind.
Sunday
Areas of fog before 10am. Otherwise, sunny, with a high near 74. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 46. West southwest wind 6 to 8 mph.
Monday
Partly sunny, with a high near 65. West southwest wind 5 to 9 mph.
Monday Night
Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 45.
Tuesday
A 30 percent chance of showers, mainly before 11am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 70.
Wednesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 47.
Thursday
Areas of fog. Otherwise, partly sunny, with a high near 66.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 45.
Friday
Areas of fog. Otherwise, sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
2:36 am PDT Oct 17, 2026
Forecast Valid:
8am PDT Oct 17, 2026-6pm PDT Oct 23, 2026
 
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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