10-Day Weather Forecast - Holtsville, NY

Partly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Humid with highs in the lower 80s. West winds 5 to 10 mph. Chance of rain 40 percent.

Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

Sunny. Highs in the upper 70s. North winds 5 to 10 mph. Gusts up to 20 mph in the morning.

Partly cloudy. Lows in the upper 50s.

Mostly sunny. Highs in the lower 70s.

Mostly clear. Lows in the upper 50s.

Sunny. Highs in the mid 70s.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the upper 70s.

Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.

Mostly sunny. Highs in the mid 70s.

Clear. Low temperature around 64F. Dew point will be around 58F with an average humidity of 73%. Winds will be 4 mph from the W.

Partly cloudy. High temperature around 76F. Dew point will be around 60F with an average humidity of 68%. Winds will be 6 mph from the SW.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 67F. Dew point will be around 64F with an average humidity of 83%. Winds will be 6 mph from the S.

Mostly sunny with a 25% chance for rain and thunderstorms. High temperature around 78F. Dew point will be around 65F with an average humidity of 76%. Winds will be 4 mph from the W.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 67F. Dew point will be around 64F with an average humidity of 81%. Winds will be 3 mph from the SW.