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
74°F
23°C
| Humidity | 24% |
| Wind Speed | NNW 5 MPH |
| Barometer | 29.92 in (1013.21 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 18 May 07:54 PM PDT |
Extended Forecast for
6 Miles SSW Lake Berryessa CA
Tonight
Low: 57 °F
Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 58 °F
Increasing
CloudsWednesday
High: 85 °F
Becoming
SunnyWednesday Night
Low: 56 °F
Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 54 °F
Clear
Friday
High: 80 °F
Sunny
Friday Night
Low: 51 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 57. North wind around 8 mph.
Tuesday
Sunny, with a high near 84. North wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday Night
Increasing clouds, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 85. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 56. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 87.
Thursday Night
Clear, with a low around 54.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
6 Miles SSW Lake Berryessa CA
38.5°N 122.28°W (Elev. 1355 ft)
38.5°N 122.28°W (Elev. 1355 ft)
1:26 pm PDT May 18, 2026
8pm PDT May 18, 2026-6pm PDT May 25, 2026
Additional Resources
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