10-Day Weather Forecast - Holtsville, NY

Sunny brisk cold with highs around 20. Northwest winds 15 to 25 mph with gusts up to 35 mph. Wind chill values as low as 15 below in the morning.

Mostly clear. Cold with lows around 10 above. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 4 below.

Sunny cold with highs in the upper 20s. Northwest winds 10 to 15 mph. Wind chill values as low as 4 below in the morning.

Partly cloudy. Lows 15 to 20.

Partly sunny. Highs in the lower 30s.

Mostly cloudy. Lows in the mid 20s.

Partly sunny in the morning then becoming mostly cloudy. Highs in the upper 30s.

Mostly cloudy with a chance of snow in the evening then partly cloudy after midnight. Lows in the mid 20s. Chance of snow 30 percent.

Partly sunny in the morning then becoming mostly cloudy. Highs in the lower 30s.

Mostly cloudy in the evening then clearing. Lows around 20.

Mostly sunny. Highs in the lower 30s.

Mostly cloudy with a slight chance of snow. Chance of precipitation 30%. Low temperature around 26F. Dew point will be around 21F with an average humidity of 75%. Winds will be 9 mph from the N.

Sunny with a slight chance of rain-snow mix. Chance of precipitation 25%. High temperature around 37F. Dew point will be around 19F with an average humidity of 55%. Winds will be 9 mph from the NW.

Clear. Low temperature around 28F. Dew point will be around 19F with an average humidity of 64%. Winds will be 7 mph from the N.

Mostly sunny. High temperature around 39F. Dew point will be around 19F with an average humidity of 52%. Winds will be 4 mph from the N.

Mostly cloudy. Low temperature around 31F. Dew point will be around 22F with an average humidity of 65%. Winds will be 1 mph from the N.

Cloudy. High temperature around 42F. Dew point will be around 24F with an average humidity of 56%. Winds will be 4 mph from the W.

Mostly cloudy. Low temperature around 32F. Dew point will be around 23F with an average humidity of 64%. Winds will be 6 mph from the W.