Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity 86%
Wind Speed N 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Apr 05:35 AM PDT
Extended Forecast for

7 Miles SSE Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. Light southwest wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 47. Southwest wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 47 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 62. Calm wind becoming south southwest 5 to 7 mph in the afternoon.  New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers.  Low around 50. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain.  Partly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 74. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 50. Light southwest wind.
Sunday
Partly sunny, with a high near 69. 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 47. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 62. Calm wind becoming south southwest 5 to 7 mph in the afternoon. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers. Low around 50. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Showers and possibly a thunderstorm. High near 57. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SSE Lake Berryessa CA
 38.48°N 122.22°W (Elev. 1798 ft)
1:41 am PDT Apr 18, 2026
5am PDT Apr 18, 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