10-Day Weather Forecast - Saint Helena, CA

Partly cloudy. Highs upper 80s to 103. North winds up to 5 mph increasing to west 10 to 15 mph in the afternoon.

Partly cloudy. Lows in the 60s to lower 70s. West winds 5 to 10 mph.

Partly cloudy in the morning then becoming sunny. Highs in the lower 80s to mid 90s. West winds up to 5 mph increasing to southwest 10 to 15 mph in the afternoon.

Mostly clear. Lows in the mid 50s to lower 60s. West winds 10 to 20 mph.

Partly cloudy in the morning then becoming sunny. Highs in the mid 70s to lower 90s.

Mostly clear. Breezy. Lows in the 50s.

Mostly clear. Breezy. Highs in the lower 70s to mid 80s.

Mostly clear. Breezy. Lows in the 50s.

Mostly clear. Breezy. Highs in the lower 70s to mid 80s.

Clear. Lows in the 50s.

Mostly clear. Highs in the lower 70s to mid 80s.

Mostly clear. Lows in the 50s.

Partly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s.

Clear. Low temperature around 50F. Dew point will be around 53F with an average humidity of 81%. Winds will be 1 mph from the SW.

Sunny. High temperature around 81F. Dew point will be around 53F with an average humidity of 56%. Winds will be 2 mph from the SW.

Clear. Low temperature around 49F. Dew point will be around 53F with an average humidity of 84%. Winds will be 2 mph from the SW.

Sunny. High temperature around 80F. Dew point will be around 53F with an average humidity of 58%. Winds will be 2 mph from the SW.

Clear. Low temperature around 50F. Dew point will be around 52F with an average humidity of 79%. Winds will be 1 mph from the S.