10-Day Weather Forecast - Saint Helena, CA

Mostly cloudy. Widespread fog in the morning then patchy fog in the afternoon. A chance of rain in the afternoon. Highs in the 50s. South winds up to 5 mph. . . Becoming southwest around 5 mph in the afternoon.

Areas of fog. A chance of rain in the evening. Rain likely after midnight. Lows near 50. Southwest winds up to 5 mph.

Rain. Highs in the mid to upper 50s. South winds 10 to 20 mph.

Rain in the evening then a chance of rain after midnight. Areas of fog after midnight. Lows in the 40s to mid 50s. Southwest winds 5 to 15 mph.

Patchy fog. Rain likely. Highs in the 50s.

Patchy fog. Showers and a slight chance of thunderstorms. Lows in the upper 40s to mid 50s.

Showers and a slight chance of thunderstorms. Highs in the 50s.

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

Rain likely. Highs in the 50s.

Patchy fog. Rain likely. Lows in the 40s.

Rain likely. Highs in the upper 40s to mid 50s.

Rain. Lows in the 40s to lower 50s.

Rain likely. Highs in the upper 40s to mid 50s.

Cloudy with a chance of rain. Chance of precipitation 60%. Low temperature around 39F. Dew point will be around 39F with an average humidity of 95%. Winds will be 2 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 42F. Dew point will be around 39F with an average humidity of 92%. Winds will be 2 mph from the W.

Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 35F. Dew point will be around 34F with an average humidity of 90%. Winds will be 3 mph from the NE.

Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 41F. Dew point will be around 36F with an average humidity of 87%. Winds will be 3 mph from the NE.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 34F. Dew point will be around 33F with an average humidity of 88%. Winds will be 2 mph from the NE.