10-Day Weather Forecast - Napa, CA

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the mid 60s to lower 80s. Southwest winds 10 to 20 mph.

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 10 to 15 mph.

Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 60s to lower 80s. Southwest winds 10 to 15 mph.

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 10 to 20 mph.

Mostly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s.

Mostly clear. Lows in the upper 40s to mid 50s.

Partly cloudy in the morning then becoming sunny. Highs in the mid 70s to upper 80s.

Mostly clear. Lows in the 50s to lower 60s. Highs in the mid 70s to lower 90s.

Mostly clear. Lows in the 50s to lower 60s. Highs in the mid 70s to lower 90s.

Mostly clear. Lows in the 50s to lower 60s. Highs in the mid 70s to lower 90s.

Mostly clear. Lows in the 50s to lower 60s. Highs in the mid 70s to lower 90s.

Mostly clear. Lows in the 50s to lower 60s. Highs in the mid 70s to lower 90s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 70s to mid 80s.

Mostly clear. Low temperature around 55F. Dew point will be around 53F with an average humidity of 75%. Winds will be 9 mph from the SW.

Sunny. High temperature around 80F. Dew point will be around 55F with an average humidity of 57%. Winds will be 9 mph from the SW.

Mostly clear. Low temperature around 56F. Dew point will be around 53F with an average humidity of 70%. Winds will be 9 mph from the SW.

Sunny. High temperature around 82F. Dew point will be around 55F with an average humidity of 54%. Winds will be 9 mph from the SW.

Mostly clear. Low temperature around 58F. Dew point will be around 53F with an average humidity of 67%. Winds will be 9 mph from the SW.