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

Spring Severe Thunderstorms and Late-Season Snow This Week

Scattered strong to severe thunderstorms may produce damaging winds, large hail, and a couple of tornadoes from east Texas through the lower Mississippi and Tennessee Valleys today and Wednesday. Late-season snow will continue over parts of the central Rockies including the Denver Metro into Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

63°F

17°C

Humidity 72%
Wind Speed S 12 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 05 May 03:00 PM PDT
Extended Forecast for

Lake Berryessa CA

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 52. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 76 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. Southwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 52. Southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 52. Southwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 81.
Friday Night
Clear, with a low around 54.
Saturday
Sunny, with a high near 86.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Berryessa CA
 38.57°N 122.24°W (Elev. 732 ft)
Last Update:
1:26 pm PDT May 5, 2026
Forecast Valid:
3pm PDT May 5, 2026-6pm PDT May 12, 2026
 
Forecast Discussion
 
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Additional Resources

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