10-Day Weather Forecast - Holtsville, NY

Patchy fog this morning. Mostly sunny. Highs in the lower 70s. Southwest winds around 5 mph increasing to south 10 to 15 mph this afternoon.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 50s. Southwest winds 10 to 15 mph.

Partly sunny. A slight chance of showers in the afternoon. Highs in the mid 70s. Southwest winds 10 to 15 mph. Chance of rain 20 percent.

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening then a chance of showers after midnight. Lows in the lower 50s. Southwest winds 10 to 15 mph. Chance of rain 30 percent.

Partly sunny. Highs in the lower 70s. Southwest winds 10 to 15 mph.

Mostly cloudy. Lows in the mid 50s.

Mostly cloudy in the morning then partly sunny with a chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 40 percent.

Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 40 percent.

Partly sunny. Highs in the upper 50s.

Mostly cloudy. Lows in the upper 40s.

Mostly cloudy with a 40 percent chance of showers. Highs around 60.

Mostly cloudy with a 40 percent chance of showers. Lows in the lower 40s.

Mostly sunny. Highs in the lower 50s.

Clear. Low temperature around 34F. Dew point will be around 24F with an average humidity of 58%. Winds will be 8 mph from the NW.

Sunny. High temperature around 49F. Dew point will be around 26F with an average humidity of 49%. Winds will be 5 mph from the S.

Mostly clear. Low temperature around 42F. Dew point will be around 31F with an average humidity of 64%. Winds will be 7 mph from the S.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 54F. Dew point will be around 39F with an average humidity of 65%. Winds will be 8 mph from the SW.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 46F. Dew point will be around 41F with an average humidity of 79%. Winds will be 7 mph from the SW.