
Severe Weather in the Central Plains; Fire Concerns in the Southern High Plains and Southwest; Late-Season Mountain Snow
Severe storms, including large hail, wind, and perhaps a couple of tornadoes, are possible in the central Plains. Dry, windy conditions and lightning from dry thunderstorms may produce hazardous fire conditions in the Southwest and southern High Plains. Late-season snow is expected in the Northwest and the Great Basin. Heat is spreading across the eastern U.S.. Read More >
Current conditions at
Napa, Napa County Airport (KAPC)
Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.
Clear
68°F
20°C
| Humidity | 42% |
| Wind Speed | SW 8 MPH |
| Barometer | 30.0 in (1015.92 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 16 May 10:30 AM PDT |
Extended Forecast for
Lake Berryessa CA
Today

High: 78 °F
Sunny
Tonight

Low: 56 °F
Mostly Clear
Sunday

High: 74 °F
Sunny and
BreezySunday Night

Low: 60 °F
Clear
Monday

High: 82 °F
Sunny
Monday Night

Low: 58 °F
Clear
Tuesday

High: 87 °F
Sunny
Tuesday Night

Low: 59 °F
Clear
Wednesday

High: 90 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 78. North northwest wind 10 to 16 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 56. Northwest wind 13 to 17 mph, with gusts as high as 31 mph.
Sunday
Sunny, with a high near 74. Breezy, with a north wind 17 to 24 mph, with gusts as high as 37 mph.
Sunday Night
Clear, with a low around 60. North wind 16 to 21 mph, with gusts as high as 36 mph.
Monday
Sunny, with a high near 82. North wind 9 to 18 mph, with gusts as high as 34 mph.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Clear, with a low around 59.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 59.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 86.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT 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 16, 2026
10am PDT May 16, 2026-6pm PDT May 22, 2026


