10-Day Weather Forecast - Old Westbury, NY

Mostly sunny. Highs around 80. Northeast winds 5 to 10 mph becoming northwest in the afternoon.

Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 60s. Southwest winds 5 to 10 mph.

Partly sunny. A chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 40 percent.

Mostly cloudy. A chance of showers and thunderstorms in the evening then a chance of showers after midnight. Humid with lows around 70. Southwest winds 10 to 15 mph. Chance of rain 50 percent.

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

Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows around 70. Chance of rain 40 percent.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows in the upper 60s.

Sunny. Highs in the mid 80s.

Partly cloudy. Lows in the upper 60s.

Mostly sunny. Highs in the mid 80s.

Partly cloudy. Lows around 70.

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

Mostly clear. Low temperature around 70F. Dew point will be around 67F with an average humidity of 78%. Winds will be 6 mph from the SW.

Mostly sunny. High temperature around 85F. Dew point will be around 68F with an average humidity of 69%. Winds will be 6 mph from the W.

Mostly clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 70F. Dew point will be around 67F with an average humidity of 77%. Winds will be 4 mph from the NW.

Mostly sunny. High temperature around 83F. Dew point will be around 66F with an average humidity of 68%. Winds will be 4 mph from the W.

Clear. Low temperature around 67F. Dew point will be around 65F with an average humidity of 78%. Winds will be 3 mph from the W.