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

Areas of Heavy Rainfall and Heat Early This Week

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and lower Mississippi River Valley today into Thursday. Rainfall totals of 5 to 10 inches are expected. Hot temperatures may cause heat illnesses over central and northern California and the Pacific Northwest through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

59°F

15°C

Humidity 87%
Wind Speed W 5 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Jun 08:20 AM PDT
Extended Forecast for

2 Miles NNW Napa Co. Airport CA

Coastal Flood Advisory June 15, 08:36am until June 18, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory June 15, 08:36am until June 18, 05:00am

    NOW until 5:00am Thu

    Coastal Flood Advisory

  • Today

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 54. West southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 78. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon.

    High: 78 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Light west southwest wind becoming southwest 6 to 11 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 80. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 54. West southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 78. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 55. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday
Mostly sunny, with a high near 75. Light west southwest wind becoming southwest 6 to 11 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 54.
Juneteenth
Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 53.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Napa Co. Airport CA
 38.22°N 122.3°W (Elev. 3 ft)
Last Update:
4:35 am PDT Jun 15, 2026
Forecast Valid:
8am PDT Jun 15, 2026-6pm PDT Jun 21, 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