10-Day Weather Forecast - Saint Helena, CA

Partly cloudy in the morning then becoming sunny. Areas of fog in the morning. Highs in the upper 70s to lower 90s. Northwest winds up to 5 mph..becoming southwest in the afternoon.

Mostly clear. Lows in the 50s to lower 60s. West winds 5 to 10 mph..becoming northwest after midnight.

Partly cloudy. Highs in the mid 70s to lower 90s. Northwest winds up to 5 mph..becoming southwest in the afternoon.

Partly cloudy. Lows in the 50s to lower 60s.

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

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

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

Mostly clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s.

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

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

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

Mostly clear. Low temperature around 55F. Dew point will be around 48F with an average humidity of 61%. Winds will be 1 mph from the N.

Sunny. High temperature around 83F. Dew point will be around 49F with an average humidity of 47%. Winds will be 2 mph from the W.

Clear. Low temperature around 53F. Dew point will be around 48F with an average humidity of 63%. Winds will be 1 mph from the SW.

Sunny. High temperature around 82F. Dew point will be around 51F with an average humidity of 47%. Winds will be 2 mph from the W.

Clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 65%. Winds will be 2 mph from the SW.

Sunny. High temperature around 81F. Dew point will be around 52F with an average humidity of 50%. Winds will be 1 mph from the SW.

Clear. Low temperature around 54F. Dew point will be around 50F with an average humidity of 67%. Winds will be 1 mph from the SW.