Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Overcast

54°F

12°C

Humidity 87%
Wind Speed SSW 10 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 50°F (10°C)
Visibility 9.00 mi
Last update 15 Jun 03:20 AM PDT
Extended Forecast for

5 Miles SW Lake Berryessa CA

  • Overnight

    Overnight: Patchy fog after 4am.  Otherwise, partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. Southwest wind around 6 mph becoming calm  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 46. Calm wind.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 44. Southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Clear, with a low around 49. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Clear, with a low around 51.
Juneteenth
Sunny, with a high near 82.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 77.
Friday Night
Clear, with a low around 47.
Saturday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Lake Berryessa CA
 38.54°N 122.32°W (Elev. 1070 ft)
1:41 am PDT Jun 15, 2025
3am PDT Jun 15, 2025-6pm PDT Jun 21, 2025
 
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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