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Sunshine and low humidity for Long Island

Weather looks nice today and tomorrow before rain moves overhead on Sunday.

Rich Hoffman

Sep 11, 2026, 11:49 AM

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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Clouds giving way to mostly sunny skies. Afternoon temperatures will reach the mid- to upper 70s to low 80s.

Long Island Today forecast

Tonight, as we head into the start of the Jewish holiday, sunset is around 7:07 p.m. Skies will be mostly clear, with a cool and comfortable night ahead. Temperatures will fall into the 50s across much of the Island by Saturday morning, with some upper 40s possible in the Pine Barrens.

Long Island tonight forecast
RAINCHANCE-NEXT3DAYS.png

Saturday starts dry with some sunshine, but clouds will gradually increase during the afternoon. High temperatures will once again be in the 70s. Saturday night turns cloudy, with a couple of showers developing and overnight lows in the 60s.

Long Island tomorrow forecast
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Sunday looks unsettled to start, with cloudy skies and periods of rain during the morning. Some rain can be heavy at times with a chance of thunderstorms. The rain should taper off during the afternoon, followed by some drying and perhaps a few breaks of late-day sunshine. Highs will range from 75 to 80 degrees.

SUN330PM.png

Then we're back to brighter weather Monday, with more sunshine and temperatures around 80 degrees.

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MARINE

There will continue to be a high risk of rip currents at the Atlantic Ocean beaches through tonight and a moderate rip current risk, but improving water conditions overall into Friday.

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Long Island Rip Currents
Current Water Temperatures
Long Island 10 day forecast

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