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Changes going into the weekend with rain that will impact your weekend plans

A spotty shower tonight with a potential washout for Sunday.

Rich Hoffman

Sep 17, 2026, 12:11 PM

Updated

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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Partly sunny skies to at times mostly cloudy conditions for the rest of today. There is a chance of a few showers between 5pm and 8pm.

Long Island Today forecast

Tonight, skies turn mostly cloudy with a couple of spotty showers possible. It’ll be a mild night, with temperatures dropping into the 60s. Any showers should be fairly scattered, and we’ll start drying things out as we head toward Friday morning.

Long Island tonight forecast

Friday is looking great. We’ll have mostly sunny skies with a bit of a breeze at times, and temperatures remain on the warm side with highs close to 80 degrees. Friday night will be partly cloudy and noticeably cooler, with lows falling into the low to mid-50s.

Long Island tomorrow forecast

Saturday starts with sunshine before a few afternoon clouds develop. It’ll be cooler, too, with highs only around 70 degrees.

Clouds increase Saturday night, with a chance of showers developing into Sunday morning. Overnight temperatures will be in the upper 50s and lower 60s. Right now, Sunday looks unsettled, with cloudy skies and periods of on-and-off showers through the day. High temperatures will reach the lower to mid-70s. Cooler temperatures with highs in the 60s to start Fall.

Long Island 10 day forecast

MARINE AND TIDES

Water conditions locally on the Atlantic Ocean and Long Island Sound will stay pretty calm through this evening.

Long Island Marine Forecast
Long Island Tides

Babylon, NY [8515421]

Long Island tide predictions for today and tomorrow

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Today’s Tides

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Tomorrow’s Tides

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Tide predictions and recent observations are provided by NOAA CO-OPS. Tide heights are in feet above mean lower low water (MLLW). Many subordinate stations provide tide predictions but do not report live water level, temperature or pressure observations.

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