Weather Forecast for
Zip Code 11787 Smithtown, NY


This Afternoon: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 98. South wind around 8 mph.

Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 89. Heat index values as high as 98. Southwest wind 6 to 10 mph.

Saturday Night: A 30 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 74. Southwest wind 5 to 7 mph.

Sunday: Sunny, with a high near 90. West wind 5 to 8 mph.

Sunday Night: Mostly clear, with a low around 71.

Monday: Sunny, with a high near 89.

Monday Night: Partly cloudy, with a low around 74.

Tuesday: A 40 percent chance of showers after 2pm. Partly sunny, with a high near 90.

Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 71.

Wednesday: Partly sunny, with a high near 86.

Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 70.

Thursday: Mostly sunny, with a high near 85.

Thursday Night: Partly cloudy, with a low around 67.

Friday: Mostly sunny, with a high near 83.

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