Severe Thunderstorms for the Center of the Nation; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

A round of severe thunderstorms are forecast across areas of the Southern Plains, Mississippi Valley and Great Lakes this afternoon and tonight; The threat for flash flooding will also accompany these storms. The rainfall for the Great Lakes region could prolong the ongoing flooding. Where the rain is needed, the Southern High Plains, critical fire weather concerns through today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity 26%
Wind Speed SSW 11 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 17 Apr 03:35 PM PDT
Extended Forecast for

7 Miles S Lake Berryessa CA

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming light south southwest  after midnight. Winds could gust as high as 21 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 11am.  Partly sunny, with a high near 62. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Rain likely.  Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. Light and variable wind.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 51. South southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 70. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 49. Southwest wind 5 to 9 mph becoming light south southwest after midnight. Winds could gust as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly after 11am. Partly sunny, with a high near 62. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 57.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46.
Wednesday
A chance of rain. Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S Lake Berryessa CA
 38.48°N 122.25°W (Elev. 1198 ft)
1:26 pm PDT Apr 17, 2026
3pm PDT Apr 17, 2026-6pm PDT Apr 24, 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