Napa Weather Forecast for Tomorrow
Chance of showers
A 30 percent chance of showers, mainly before 4pm. Partly sunny, with a high near 56. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 34. North northwest wind 10 to 15 mph becoming light north in the evening. Winds could gust as high as 18 mph.