



Storm Moving from Western into Central U.S. through Wednesday
A storm system moving over the Rockies Wednesday will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Moderate snow is expected from northwestern Wyoming into southern Montana. Read More >
Current conditions at
Napa, Napa County Airport (KAPC)
Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.
Rain
54°F
12°C
Humidity | 100% |
Wind Speed | NE 3 MPH |
Barometer | 29.94 in (1013.89 mb) |
Dewpoint | 54°F (12°C) |
Visibility | 10.00 mi |
Last update | 14 Oct 10:00 PM PDT |
Extended Forecast for
3 Miles N Hercules CA
Tonight
Low: 53 °F
Chance
ShowersWednesday
High: 63 °F
Decreasing
CloudsWednesday Night
Low: 51 °F
Mostly Clear
Thursday
High: 66 °F
Patchy Fog
then SunnyThursday Night
Low: 52 °F
Mostly Clear
Friday
High: 71 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 73 °F
Sunny
Saturday Night
Low: 55 °F
Mostly Clear
Detailed Forecast
Tonight
A 50 percent chance of showers. Mostly cloudy, with a low around 53. Light east wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Light and variable wind becoming east around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 68.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles N Hercules CA
38.05°N 122.25°W (Elev. 56 ft)
38.05°N 122.25°W (Elev. 56 ft)
1:26 pm PDT Oct 14, 2025
10pm PDT Oct 14, 2025-6pm PDT Oct 21, 2025