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Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

66°F

19°C

Humidity 72%
Wind Speed S 5 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Jul 01:00 AM PDT
Extended Forecast for

Napa Co. Airport CA

Coastal Flood Advisory July 15, 01:19am until July 16, 04:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory July 15, 01:19am until July 16, 04:00am

    NOW until 4:00am Thu

    Coastal Flood Advisory

  • Overnight

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Southwest wind 9 to 15 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Southwest wind 8 to 17 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. Southwest wind 8 to 16 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 62. Southwest wind around 6 mph.
Wednesday
Sunny, with a high near 88. Southwest wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 58. Southwest wind 9 to 15 mph.
Thursday
Sunny, with a high near 81. Southwest wind 8 to 17 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 52. Southwest wind 8 to 16 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly cloudy, with a high near 73.
Sunday Night
Mostly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 75.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Napa Co. Airport CA
 38.2°N 122.29°W (Elev. 20 ft)
Last Update:
12:31 am PDT Jul 15, 2026
Forecast Valid:
1am PDT Jul 15, 2026-6pm PDT Jul 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation