10-Day Weather Forecast - Smithtown, NY

Mostly sunny. Highs in the lower 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

Mostly clear. Lows in the upper 60s. Southwest winds 10 to 15 mph.

Sunny. Highs in the upper 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear. Lows in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph.

Sunny. Highs in the lower 90s. Heat index values in the upper 90s.

Partly cloudy. Lows in the lower 70s.

Mostly sunny. Highs in the upper 80s.

Partly cloudy. Lows in the lower 70s.

Mostly sunny. Highs in the mid 80s.

Partly cloudy. Lows around 70.

Partly sunny. A chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.

Mostly cloudy with a 30 percent chance of showers. Lows around 70.

Mostly sunny. Highs in the lower 80s.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 70F. Dew point will be around 65F with an average humidity of 75%. Winds will be 5 mph from the S.

Sunny with a chance of rain. Chance of precipitation 35%. High temperature around 84F. Dew point will be around 68F with an average humidity of 68%. Winds will be 5 mph from the S.

Mostly clear with a chance of rain. Chance of precipitation 45%. Low temperature around 71F. Dew point will be around 67F with an average humidity of 79%. Winds will be 4 mph from the S.

Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 83F. Dew point will be around 68F with an average humidity of 70%. Winds will be 3 mph from the S.

Mostly clear with a chance of rain. Chance of precipitation 55%. Low temperature around 70F. Dew point will be around 67F with an average humidity of 83%. Winds will be 2 mph from the SE.