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

Tropical Storm and Storm Surge Warnings for the North Carolina Outer Banks; Heat Building in the West

Storm surge flooding and tropical storm conditions are expected in the Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Warnings are in effect. Tropical storm conditions are possible along the eastern shore of Virginia Thursday. Hurricane Erin will continue to produce life-threatening surf and rip currents along much of the east coast of the U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 72%
Wind Speed SSW 10 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 19 Aug 09:50 PM PDT
Extended Forecast for

2 Miles NNE Lake Berryessa CA

Heat Advisory August 21, 10:00am until August 22, 10:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Clear, with a low around 63. Calm wind.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 69. Light west northwest wind.

    Low: 69 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Southwest wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 69. Light west northwest wind.
Thursday
Sunny and hot, with a high near 96. Calm wind.
Thursday Night
Partly cloudy, with a low around 68. Southwest wind around 6 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 96.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 94.
Saturday Night
Clear, with a low around 65.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Lake Berryessa CA
 38.6°N 122.22°W (Elev. 440 ft)
Last Update:
8:11 pm PDT Aug 19, 2025
Forecast Valid:
10pm PDT Aug 19, 2025-6pm PDT Aug 26, 2025
 
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