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

97°F

36°C

Humidity 18%
Wind Speed SSW 5 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 09 Sep 02:20 PM PDT
Extended Forecast for

Napa CA

Heat Advisory September 9, 02:37pm until September 10, 10:00pm
Coastal Flood Advisory September 9, 02:37pm until September 10, 01:00am
Click here for hazard details and duration
Heat Advisory
Coastal Flood Advisory
  •  
    Heat Advisory September 9, 02:37pm until September 10, 10:00pm
    Coastal Flood Advisory September 9, 02:37pm until September 10, 01:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 98 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 9 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 98. West southwest wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 67. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 58. Southwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Friday
Mostly sunny, with a high near 81. Light southwest wind increasing to 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 80.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
Last Update:
1:25 pm PDT Sep 9, 2026
Forecast Valid:
2pm PDT Sep 9, 2026-6pm PDT Sep 15, 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