Tonight's weather conditions in Napa: Mostly clear early followed by cloudy skies overnight. Low 48F. Winds NNE at 5 to 10 mph. Tuesday, it will be a warm day in Napa. It looks like it will be a mild 78 degrees. Expect a drastic drop in temperatures though, with a low reaching 46 degrees. Partly cloudy skies are in the forecast. There is a medium-high UV index expected Tuesday. Seek shade during late morning through mid-afternoon. When outside, generously apply sunscreen, wear protective clothing, a wide-brimmed hat, and sunglasses. Breezy conditions are expected this Tuesday, with forecast showing winds from the north, clocking in at 21 mph. Visit napavalleyregister.com for more weather updates.
Feb. 23, 2021 evening weather update for Napa Valley