10-Day Weather Forecast - West Sayville, NY

Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values in the upper 90s.

Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. Southwest winds 10 to 15 mph. Chance of rain 40 percent.

Sunny with highs in the upper 80s. West winds 10 to 15 mph. Heat index values in the upper 90s.

Mostly clear. Humid with lows in the lower 70s. West winds 5 to 10 mph, becoming northwest after midnight.

Sunny. Highs in the mid 80s.

Partly cloudy. Lows in the mid 70s.

Partly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. Heat index values in the mid 90s.

Mostly cloudy with a chance of showers. Lows in the lower 70s. Chance of rain 40 percent.

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

Mostly cloudy with a 40 percent chance of showers. Lows in the lower 70s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the lower 80s.

Clear. Low temperature around 65F. Dew point will be around 60F with an average humidity of 73%. Winds will be 6 mph from the W.

Mostly sunny. High temperature around 78F. Dew point will be around 61F with an average humidity of 63%. Winds will be 6 mph from the SW.

Mostly clear. Low temperature around 65F. Dew point will be around 60F with an average humidity of 74%. Winds will be 5 mph from the W.

Sunny. High temperature around 77F. Dew point will be around 61F with an average humidity of 64%. Winds will be 6 mph from the SW.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 66F. Dew point will be around 61F with an average humidity of 77%. Winds will be 5 mph from the SW.