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

Severe Thunderstorms and Heavy Rainfall Today from the Central Plains into the Tennessee Valley

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into portions of the Southeast today. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys today. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

59°F

15°C

Humidity 87%
Wind Speed SSW 6 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 12 Jul 02:35 AM PDT
Extended Forecast for

4 Miles WSW Napa CA

Coastal Flood Advisory July 12, 02:52am until July 16, 04:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory July 12, 02:52am until July 16, 04:00am

    NOW until 4:00am Thu

    Coastal Flood Advisory

  • Overnight

    Low: 57 °F

    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Isolated showers after 4am. Mostly cloudy, with a low around 59. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 59 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Overnight
Cloudy, with a low around 57. Calm wind.
Sunday
Partly sunny, with a high near 82. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
Isolated showers after 4am. Mostly cloudy, with a low around 59. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 55.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Napa CA
 38.28°N 122.37°W (Elev. 407 ft)
Last Update:
2:36 am PDT Jul 12, 2026
Forecast Valid:
2am PDT Jul 12, 2026-6pm PDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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