Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

72°F

22°C

Humidity 56%
Wind Speed SSW 18 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 01 Sep 02:00 PM PDT
Extended Forecast for

4 Miles SSE Lake Berryessa CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 21 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of drizzle after 5am.  Partly cloudy, with a low around 54. West southwest wind 6 to 11 mph becoming light south  after midnight. Winds could gust as high as 25 mph.

    Low: 54 °F

    Mostly Clear
    then Slight
    Chance
    Drizzle

  • Wednesday

    Wednesday: A chance of drizzle, mainly before 8am.  Mostly sunny, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 72 °F

    Chance
    Drizzle then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of drizzle after 4am.  Increasing clouds, with a low around 56. West southwest wind 5 to 9 mph becoming light southwest  after midnight. Winds could gust as high as 21 mph.

    Low: 56 °F

    Mostly Clear
    then Chance
    Drizzle

  • Thursday

    Thursday: Drizzle likely before 2pm, then rain likely after 2pm.  Mostly cloudy, with a high near 69. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 21 mph.
Tonight
A slight chance of drizzle after 5am. Partly cloudy, with a low around 54. West southwest wind 6 to 11 mph becoming light south after midnight. Winds could gust as high as 25 mph.
Wednesday
A chance of drizzle, mainly before 8am. Mostly sunny, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
A chance of drizzle after 4am. Increasing clouds, with a low around 56. West southwest wind 5 to 9 mph becoming light southwest after midnight. Winds could gust as high as 21 mph.
Thursday
Drizzle likely before 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 69. South southwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 80.
Sunday Night
Clear, with a low around 56.
Labor Day
Sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Lake Berryessa CA
 38.53°N 122.23°W (Elev. 991 ft)
1:26 pm PDT Sep 1, 2026
2pm PDT Sep 1, 2026-6pm PDT Sep 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database