10-Day Weather Forecast - Holtsville, NY

Mostly cloudy. A slight chance of showers this morning. Highs in the upper 40s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

Cloudy with a 50 percent chance of showers. Lows in the lower 30s. South winds 5 to 10 mph becoming southwest with gusts up to 20 mph after midnight.

Mostly cloudy with a slight chance of rain and snow showers in the morning then mostly sunny in the afternoon. Highs in the lower 40s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 20 percent.

Mostly cloudy in the evening then becoming partly cloudy. Brisk with lows around 20. West winds 15 to 25 mph with gusts up to 35 mph.

Sunny brisk with highs in the mid 30s. West winds 15 to 25 mph with gusts up to 35 mph.

Mostly cloudy. Lows in the upper 20s.

Mostly cloudy. A chance of rain in the afternoon. Highs in the lower 40s. Chance of rain 30 percent.

Mostly cloudy. Lows in the mid 20s.

Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 30s.

Partly cloudy. Lows in the lower 20s.

Mostly sunny. Highs in the lower 30s.

Mostly cloudy in the evening then becoming partly cloudy. Lows around 20.

Mostly sunny and brisk. Highs around 30.

Partly cloudy. Low temperature around 16F. Dew point will be around 10F with an average humidity of 67%. Winds will be 10 mph from the NW.

Sunny. High temperature around 29F. Dew point will be around 13F with an average humidity of 61%. Winds will be 9 mph from the W.

Mostly cloudy. Low temperature around 24F. Dew point will be around 17F with an average humidity of 70%. Winds will be 9 mph from the W.

Partly cloudy. High temperature around 35F. Dew point will be around 23F with an average humidity of 70%. Winds will be 9 mph from the W.

Partly cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 27F. Dew point will be around 24F with an average humidity of 80%. Winds will be 5 mph from the W.