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Enjoy the warmth today with cooler weather on Long Island tomorrow

Changes in temperature this week. Overall more above average temperatures in the forecast for Long Island.

Rich Hoffman

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Oct 26, 2026, 12:27 PM

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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It's a fantastic day to get outside, whether you're working in the yard, taking a walk, enjoying the fall foliage or getting in some outdoor exercise. The sunshine and mild temperatures will make it feel more like early October than the final week of the month. Highs wull range from 62 to 72

Long Island Today forecast
Long Island Marine Forecast
Long Island tonight forecast

A cold front will move through tonight, bringing mostly clear skies and overnight temperatures dropping into the 40s.

You'll notice a change in the air on Tuesday as cooler weather settles across Long Island. Despite plenty of sunshine, afternoon highs will only reach the 50s, and a bit of a breeze will add an extra chill. You'll definitely want a jacket for the morning commute, getting the kids off to school or heading outside for an early workout. The good news is that this cooler weather won't last very long.

Long Island tomorrow forecast

By Wednesday, sunshine continues, with temperatures rebounding into the lower and middle 60s. Thursday looks even nicer, with sunny skies and afternoon highs climbing into the middle and upper 60s.

The warming trend continues into Friday, with plenty of sunshine and temperatures reaching the 60s to around 70 degrees. Overall, we're looking at a terrific stretch of dry fall weather for Long Island. Whether you have outdoor construction projects, landscaping, yard cleanup or other work that needs to get done before winter, the weather should cooperate nicely. It's also a great opportunity to enjoy the beautiful fall foliage across Nassau and Suffolk counties. From neighborhood parks to the scenic roads and trails of eastern Long Island, the changing leaves are adding plenty of color to the landscape. With sunshine dominating the forecast, it's a wonderful time to get outside and enjoy the sights and sounds of autumn.

And here's some great news for all the ghosts, goblins and trick-or-treaters! Right now, the Halloween forecast is looking anything but scary. Saturday is shaping up to be another beautiful fall day, with sunshine, a few passing clouds and afternoon temperatures in the 60s. As the sun goes down and trick-or-treating gets underway, temperatures will gradually fall into the 50s. You may want a light jacket or an extra layer underneath those Halloween costumes, but the good news is that dry weather is expected. The weather is also looking favorable for Saturday sporting events, youth soccer and football games, fall festivals, pumpkin picking and other outdoor activities. It's shaping up to be a Halloween filled with more treats than tricks from Mother Nature!

One more important reminder as we head into the weekend: Daylight saving time comes to an end early Sunday morning, Nov. 1. Don't forget to turn your clocks back one hour at 2 a.m., giving everyone an extra hour of sleep after a busy Halloween night. While we'll enjoy a little more daylight in the morning, the trade-off is an earlier sunset Sunday evening, with the sun setting around 4:49 p.m. across Long Island. That means less daylight for those late-afternoon walks, outdoor sports and yard projects. Overall, we're looking at a beautiful final week of October, with plenty of sunshine, a brief cooldown Tuesday and a nice warming trend heading into Halloween weekend. Enjoy the fall colors, take advantage of the dry weather and make the most of these beautiful autumn days!

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Long Island 10 day forecast

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