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

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

73°F

23°C

Humidity 56%
Wind Speed SSW 17 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 10 Aug 03:20 PM PDT
Extended Forecast for

Napa CA

Coastal Flood Advisory August 10, 03:44pm until August 13, 02:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory August 10, 03:44pm until August 13, 02:00am

    NOW until 2:00am Thu

    Coastal Flood Advisory

  • Tonight

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 56. South southwest wind around 6 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 75. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Southwest wind 3 to 8 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 55. South southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Tuesday Night
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 56. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 75. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 55. Southwest wind 3 to 8 mph.
Thursday
Partly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Partly sunny, with a high near 73.
Friday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
1:26 pm PDT Aug 10, 2026
Forecast Valid:
3pm PDT Aug 10, 2026-6pm PDT Aug 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation