10-Day Weather Forecast - Stony Brook, NY

Sunny. Highs in the lower 80s. North winds 5 to 10 mph becoming northwest this afternoon.

Mostly clear. Lows in the upper 60s. Southwest winds 5 to 10 mph.

Mostly sunny. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening then a chance of showers after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 30 percent.

Partly sunny. Showers likely with a chance of thunderstorms in the afternoon. Humid with highs around 90. West winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 100.

Mostly cloudy. Showers likely with a chance of thunderstorms in the evening. Lows in the lower 70s. Chance of rain 70 percent.

Mostly sunny. Highs in the mid 80s.

Mostly clear. 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 upper 80s. Heat index values in the mid 90s in the afternoon.

Mostly clear. Low temperature around 71F. Dew point will be around 67F with an average humidity of 77%. 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 71F. Dew point will be around 67F with an average humidity of 76%. 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 68F. Dew point will be around 65F with an average humidity of 77%. Winds will be 3 mph from the NW.