Napa 7 Day Weather Forecast with Current Weather Conditions for , CA." />

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Napa, California 7 Day Weather Forecast

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NWS Forecast for Napa CA

National Weather Service Forecast for: Napa CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA

Updated: 12:27 pm PST Dec 18, 2025

This Afternoon Patchy Fog	Tonight Chance Rain and Fog	Friday Rain and Patchy Fog	Friday Night Rain then Chance Rain and Fog	Saturday Rain Likely and Fog	Saturday Night Rain and Patchy Fog	Sunday Showers	Sunday Night Rain	Monday Rain
Hi 57 °F	Lo 48 °F	Hi 56 °F	Lo 51 °F	Hi 54 °F	Lo 52 °F	Hi 57 °F	Lo 53 °F	Hi 55 °F

This Afternoon	Patchy fog after 5pm. Otherwise, partly sunny, with a high near 57. Light south southwest wind.
Tonight	A 30 percent chance of rain after 10pm. Widespread fog, mainly between 10pm and 3am. Otherwise, cloudy, with a low around 48. Calm wind.
Friday	Rain, mainly after 10am. Patchy fog before 8am. High near 56. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night	Rain, mainly before 10pm. Widespread fog, mainly after 4am. Low around 51. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday	Rain likely, mainly after 10am. Widespread fog, mainly before 10am. Otherwise, cloudy, with a high near 54. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night	Rain. Patchy fog before 10pm. Low around 52. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday	Rain before 10am, then showers and possibly a thunderstorm between 10am and 1pm, then rain after 1pm. High near 57. Chance of precipitation is 100%.
Sunday Night	Rain. Cloudy, with a low around 53.
Monday	Rain. Cloudy, with a high near 55.
Monday Night	Rain. Patchy fog after 1am. Otherwise, cloudy, with a low around 48.
Tuesday	Rain. Areas of fog. Otherwise, cloudy, with a high near 53.
Tuesday Night	Rain. Cloudy, with a low around 44.
Wednesday	Rain. Mostly cloudy, with a high near 52.

Forecast from NOAA-NWS for Napa CA.

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