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Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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1991-2020 Normals
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ISP Climate
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WHAT TO KNOW
Remnants of Isaias brought heavy rain for parts across the Island. It was a raw and breezy one with temperatures reaching a high of 60 alongside an east wind at 16 mph. Looking ahead to Sunday night, the wet weather will continue as light rain persists into the overnight hours while temperatures cool down to a low of 53.
Minor flooding is possible along the coast during the high tide overnight and early Monday. However, impactful tidal flooding will be very isolated.
Monday kicks off with a bit of a chill as temperatures dip to around 60 under cloudy skies. Sunshine breaks out to push afternoon highs comfortably into the 70s for a warm finish to the day.
Tuesday is expected to stay dry in the morning but a few showers are possible late Tuesday and very early Wednesday. Temperatures both Tuesday and Wednesday will be near 70 in the afternoon, perhaps the mid-70s on Tuesday.
There is some uncertainty about the end of the week, but the trend as of Sunday evening's forecast calls for showers Thursday evening and Friday. Temperatures will be cooler than average, with morning lows in the 40s or near 50. Afternoon high temperatures will be in the mid-60s.