Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.
Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >
Current conditions at
Napa, Napa County Airport (KAPC)
Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.
Clear
48°F
9°C
| Humidity | 76% |
| Wind Speed | N 0 MPH |
| Barometer | 29.98 in (1015.24 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Last update | 19 May 02:15 AM PDT |
Extended Forecast for
Lake Berryessa CA
Overnight
Low: 58 °F
Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 58 °F
Clear
Thursday
High: 90 °F
Sunny
Thursday Night
Low: 58 °F
Clear
Friday
High: 86 °F
Sunny
Friday Night
Low: 55 °F
Clear
Detailed Forecast
Overnight
Clear, with a low around 58. Northwest wind around 7 mph.
Tuesday
Sunny, with a high near 84. North wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 58. West southwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 58.
Friday
Sunny, with a high near 86.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 54.
Memorial Day
Sunny, with a high near 83.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Lake Berryessa CA
38.57°N 122.24°W (Elev. 732 ft)
38.57°N 122.24°W (Elev. 732 ft)
1:26 am PDT May 19, 2026
2am PDT May 19, 2026-6pm PDT May 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
