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

Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

63°F

17°C

Humidity 60%
Wind Speed SSW 10 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 14 Apr 01:54 PM PDT
Extended Forecast for

7 Miles SSE Lake Berryessa CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Southwest wind around 7 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, increasing clouds, with a low around 42. Southwest wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 66 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. West southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 22 mph.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Light north northwest wind becoming north 10 to 15 mph in the morning. Winds could gust as high as 30 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Southwest wind around 7 mph.
Tonight
Patchy fog after 5am. Otherwise, increasing clouds, with a low around 42. Southwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 66. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 43. West southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 64. Light north northwest wind becoming north 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
A chance of rain. Partly sunny, with a high near 65.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 47.
Monday
A chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Lake Berryessa CA
 38.48°N 122.22°W (Elev. 1798 ft)
Last Update:
1:26 pm PDT Apr 14, 2026
Forecast Valid:
2pm PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation