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No tricks, just treats when it comes to this weekend's weather forecast

A pleasant dry finish to October with Daylight Saving Time also coming to an end!

Jonathan Cubit

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Oct 30, 2026, 5:48 PM

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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Happy Friday, Long Island!

We're ending the workweek on a gorgeous note. The cooler air arrives tonight. Skies stay mostly clear, but temperatures will drop into the lower 40s for most of the island, with some 30s possible across the Pine Barrens by daybreak Saturday. You'll definitely want a jacket if you're heading out early Halloween morning.

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Long Island Today forecast
Long Island tonight forecast

Speaking of Halloween, the weather couldn't cooperate much better. It'll be cooler than Friday, but we'll keep the sunshine around all day with highs in the upper 50s. Temperatures during trick-or-treat hours will generally be in the 50s, falling from the mid-50s in the late afternoon to around 50 degrees by sunset. By later in the evening, readings will slip into the upper 40s and lower 40s under clear skies. The best part? No rain concerns at all. Whether you're taking the kids around the neighborhood or heading to a Halloween event, the weather stays dry. Just make sure costumes include an extra layer because it'll feel chilly once the sun goes down.

Long Island tomorrow forecast
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Some of the colder inland spots could even wake up to a little patchy frost Sunday morning. Also, don't forget, daylight saving time ends early Sunday morning. Clocks go back one hour and although we enjoy that extra hour of sleep, the trade-off is that sunsets arrive much earlier, with darkness settling in before 5 p.m. Sunday.

The time change is also a good reminder to test your smoke detectors and carbon monoxide alarms, replace batteries if needed, and make sure your household emergency plan is still up to date.

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Sunday looks every bit as nice as Saturday. Great weather for NYC Marathon runners and just anyone looking ot get out ot enjoy some fall festive activities to open the month of November. After a chilly start in the 30s and 40s, sunshine will help temperatures recover into the upper 50s and lower 60s during the afternoon. It should be a fantastic day for fall festivals, outdoor sports, yard work, or simply enjoying some time outside before the colder weather of November settles in.

Overall, we have a beautiful autumn weekend ahead. Plenty of sunshine, dry weather, cool mornings, and pleasant afternoons. Enjoy Halloween, enjoy the extra hour of sleep, and enjoy one more great fall weekend across Long Island

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Long Island 10 day forecast

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