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Near record warmth on Wednesday and then a big chill for the weekend

Highs close to 80 on Wednesday and then feels-like temperatures in the 30s for Saturday and Sunday.

Rich Hoffman

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Oct 13, 2026, 12:08 PM

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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Sun and Clouds for today. The East End will be mostly cloudy for most of the afternoon. Temperatures will be comfortable for mid-October, with highs generally in the upper 60s to lower 70s.

Long Island Today forecast

Tonight, we'll have partly cloudy skies and relatively mild conditions for this time of year. Overnight temperatures will drop into the lower to middle 60s. Wednesday will bring a taste of summer to Long Island, with temperatures climbing into the 70s and even lower 80s in some spots, especially across Nassau County and western Suffolk.

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We'll see a mixture of sun and clouds, with southwest winds of 10 to 20 mph making it a little breezy at times. There's a slight chance of a passing shower late in the day, but most of Wednesday should remain dry. Enjoy the warmth because some big changes are coming our way!

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Thursday brings a return to more typical October weather. We'll have plenty of sunshine, but temperatures will be cooler, with afternoon highs generally in the middle 60s. Clouds return Friday, along with periods of showers and temperatures ranging from 65 to 70 degrees. A strong cold front will move through Friday night, bringing a dramatic change in our weather. Behind the front, colder air will rush into the region, accompanied by gusty winds of 30 to 40 mph. Temperatures will tumble into the lower 40s by Saturday morning, with wind chills making it feel more like the 30s. It's going to be quite a shock after Wednesday's summerlike warmth!

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