10-Day Weather Forecast - Holtsville, NY

Mostly sunny. Highs in the mid 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Mostly cloudy. A slight chance of showers after midnight. Near steady temperature in the lower 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 20 percent.

Cloudy. A slight chance of showers in the morning. Highs in the upper 40s. Southwest winds 10 to 15 mph. Chance of rain 20 percent.

Cloudy with a 50 percent chance of rain. Lows around 30. Southwest winds 5 to 10 mph.

Mostly cloudy with a slight chance of rain and snow in the morning then mostly sunny in the afternoon. Highs in the upper 30s. West winds 15 to 20 mph. Chance of precipitation 20 percent.

Partly cloudy in the evening then becoming mostly clear. Lows around 20.

Mostly sunny. Highs in the mid 30s.

Mostly cloudy in the evening then becoming partly cloudy. Near steady temperature in the lower 30s.

Partly sunny. Highs in the lower 40s.

Mostly cloudy. Lows in the upper 20s.

Partly sunny. Highs in the upper 30s.

Mostly cloudy. Lows in the lower 20s.

Partly sunny. Highs in the lower 30s.

Partly cloudy. Low temperature around 18F. Dew point will be around 13F with an average humidity of 69%. Winds will be 11 mph from the W.

Partly cloudy. High temperature around 28F. Dew point will be around 13F with an average humidity of 61%. Winds will be 11 mph from the W.

Clear. Low temperature around 18F. Dew point will be around 13F with an average humidity of 69%. Winds will be 9 mph from the W.

Sunny. High temperature around 29F. Dew point will be around 13F with an average humidity of 60%. Winds will be 9 mph from the W.

Clear. Low temperature around 23F. Dew point will be around 17F with an average humidity of 70%. Winds will be 8 mph from the W.