10-Day Weather Forecast - Stony Brook, NY

Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds around 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 20 percent. Heat index values up to 103.

Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Some thunderstorms may produce gusty winds in the evening. Humid with lows in the lower 70s. Northwest winds 5 to 10 mph becoming north after midnight. Chance of rain 50 percent.

Mostly sunny. Highs in the mid 80s. Northeast winds around 10 mph becoming east in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 70.

Partly sunny. A chance of showers in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Sunny. Highs in the upper 80s. Heat index values in the mid 90s.

Mostly clear. Lows in the lower 70s.

Sunny. Highs in the lower 90s. Heat index values up to 100.

Partly cloudy. Lows in the mid 70s.

Mostly sunny. Highs around 90. Heat index values in the mid 90s.

Partly cloudy with a 30% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 66F with an average humidity of 74%. Winds will be 7 mph from the N.

Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 77F. Dew point will be around 64F with an average humidity of 71%. Winds will be 9 mph from the N.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 62F with an average humidity of 77%. Winds will be 7 mph from the N.

Sunny. High temperature around 75F. Dew point will be around 60F with an average humidity of 68%. Winds will be 7 mph from the N.

Clear. Low temperature around 66F. Dew point will be around 59F with an average humidity of 72%. Winds will be 5 mph from the N.

Sunny. High temperature around 76F. Dew point will be around 59F with an average humidity of 65%. Winds will be 5 mph from the N.

Mostly clear. Low temperature around 67F. Dew point will be around 60F with an average humidity of 72%. Winds will be 3 mph from the N.