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

41°F

5°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Apr 05:20 AM PDT
Extended Forecast for

3 Miles SSE Lake Berryessa CA

  • Today

    Today: Sunny, with a high near 75. Calm wind becoming south around 5 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tonight

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

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 48. Southwest wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 48 °F

    Slight Chance
    Showers

  • Monday

    Monday: A 50 percent chance of showers.  Partly sunny, with a high near 64. 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: 64 °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 59. Chance of precipitation is 90%.

    High: 59 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm.  Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: A chance of rain.  Patchy fog before 8am.  Otherwise, partly sunny, with a high near 64.

    High: 64 °F

    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Today
Sunny, with a high near 75. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 50. Calm wind.
Sunday
Partly sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 48. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 64. 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 59. Chance of precipitation is 90%.
Tuesday Night
Rain likely, mainly before 11pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Patchy fog before 8am. Otherwise, partly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Lake Berryessa CA
 38.53°N 122.23°W (Elev. 991 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