10-Day Weather Forecast - Saint Helena, CA

Partly cloudy. Areas of fog in the morning. A slight chance of drizzle in the morning. Highs in the 60s. Northwest winds up to 5 mph. . . Becoming southwest in the afternoon.

Mostly clear. Areas of fog after midnight. Lows in the 40s to lower 50s. West winds 10 to 15 mph decreasing to up to 5 mph after midnight.

Sunny. Areas of fog in the morning. Highs in the mid 60s to upper 70s. Northwest winds up to 5 mph. . . Becoming southwest in the afternoon.

Clear. Lows in the mid 40s to lower 50s.

Sunny. Highs in the upper 60s to lower 80s.

Mostly clear. Lows in the 40s to mid 50s. Highs in the upper 60s to lower 80s.

Mostly clear. Lows in the 40s to mid 50s. Highs in the upper 60s to lower 80s.

Mostly clear except patchy fog. Lows in the 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 mostly cloudy. Patchy fog. Lows in the 40s to mid 50s.

Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 60s to upper 70s.

Partly cloudy. Low temperature around 49F. Dew point will be around 48F with an average humidity of 84%. Winds will be 2 mph from the SW.

Sunny. High temperature around 72F. Dew point will be around 50F with an average humidity of 64%. Winds will be 2 mph from the W.

Clear. Low temperature around 48F. Dew point will be around 48F with an average humidity of 82%. Winds will be 2 mph from the W.

Sunny. High temperature around 71F. Dew point will be around 50F with an average humidity of 65%. Winds will be 2 mph from the SW.

Mostly clear. Low temperature around 49F. Dew point will be around 50F with an average humidity of 85%. Winds will be 2 mph from the SW.

Mostly sunny. High temperature around 69F. Dew point will be around 50F with an average humidity of 66%. Winds will be 2 mph from the SW.

Clear. Low temperature around 47F. Dew point will be around 48F with an average humidity of 84%. Winds will be 2 mph from the SW.