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

52°F

11°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Oct 01:30 AM PDT
Extended Forecast for

Sonoma CA

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, increasing clouds, with a high near 70. Light and variable wind.

    High: 70 °F

    Areas Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.

    High: 71 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 11pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A 30 percent chance of showers before 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 69. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, sunny, with a high near 75.

    High: 75 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, increasing clouds, with a high near 70. Light and variable wind.
Tuesday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 46. Calm wind.
Wednesday
A 40 percent chance of showers, mainly after 1pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
A 40 percent chance of showers, mainly after 11pm. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 46. Calm wind.
Thursday
A 30 percent chance of showers before 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 69. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 42.
Friday
Areas of fog before 10am. Otherwise, sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
Last Update:
1:26 am PDT Oct 20, 2026
Forecast Valid:
1am PDT Oct 20, 2026-6pm PDT Oct 26, 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