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

54°F

12°C

Humidity 80%
Wind Speed SE 4 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 19 Apr 12:54 AM PDT
Extended Forecast for

2 Miles E Lake Berryessa CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 70 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 4am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 48. West southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 48 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after 11am.  Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain.  Low around 52. South southwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am.  High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm.  Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely then
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before 11am, then a chance of showers and thunderstorms after 11am.  Partly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of rain after 4am. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. West southwest wind 5 to 7 mph becoming calm after midnight.
Monday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 63. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 52. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm, mainly after 11am. High near 58. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then rain likely, mainly between 8pm and 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Wednesday
A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 72.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 71.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Lake Berryessa CA
 38.57°N 122.21°W (Elev. 440 ft)
11:21 pm PDT Apr 18, 2026
1am PDT Apr 19, 2026-6pm PDT Apr 25, 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