Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

41°F

5°C

Humidity 100%
Wind Speed NW 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 41°F (5°C)
Visibility 4.00 mi
Last update 15 Apr 06:20 AM PDT
Extended Forecast for

6 Miles SE Lake Berryessa CA

  • Today

    Today: Areas of fog before 8am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 70 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. West wind 5 to 8 mph becoming calm  after midnight. Winds could gust as high as 21 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67. North wind 7 to 15 mph, with gusts as high as 31 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. North northwest wind around 9 mph, with gusts as high as 31 mph.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74. North wind 6 to 8 mph, with gusts as high as 24 mph.

    High: 74 °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 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain.  Partly sunny, with a high near 70.

    High: 70 °F

    Chance Rain

Detailed Forecast

Today
Areas of fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 42. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 67. North wind 7 to 15 mph, with gusts as high as 31 mph.
Thursday Night
Clear, with a low around 47. North northwest wind around 9 mph, with gusts as high as 31 mph.
Friday
Sunny, with a high near 74. North wind 6 to 8 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
A chance of rain. Partly sunny, with a high near 70.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 47.
Monday
A chance of rain. Partly sunny, with a high near 66.
Monday Night
A chance of rain. Mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Lake Berryessa CA
 38.51°N 122.2°W (Elev. 541 ft)
1:56 am PDT Apr 15, 2026
6am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database