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A chilly Halloween weekend on Long Island

Clear and cool today with frost in cooler spots tonight.

Alex Calamia

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Oct 31, 2026, 6:45 AM

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Islip Information

Islip Information

Islip, New York • Climate data: Islip MacArthur Airport (ISP)
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It's a bright but crisp start to the weekend on Long Island, perfect for Halloween festivities and outdoor events, before a noticeable warm-up takes over early next week.

Today

Today is less windy than yesterday but much cooler. Yesterday was 73-degrees in Islip which was just a few degrees shy of the record high of 76-degrees. Temperatures will only reach the upper 50s today. Bright sunshine returns to the island.

If you are heading out to a local Halloween parade or taking the kids trick-or-treating, expect chilly but dry weather. Temperatures will be in the low to mid 50s for early afternoon and drop into the 40s when the sun sets.

Sunday

Tonight Daylight Saving Time will end, giving us an extra hour of sleep. The sun will rise an hour early and also set an hour earlier.

It's a very chilly start to the day with frost expected in cooler pockets and freezing temperatures by the pine barrens. Expect a mix of sun and clouds with temperatures reaching near 60-degrees in the afternoon. It's great weather for NYC Marathon runners and spectators.

The work week

November starts with fantastic weather. Temperatures are in the mid to upper 60s and could hit 70-degrees on Wednesday and Thursday. Typical high temperatures are only in the 50s!

An end to our dry streak

It's been 13 days since the last time it rained. Changes are on the way. Rain will likely return Thursday evening into Friday, but there is still uncertainty about how heavy the rain will be or if it will last into next weekend. If we can go through Thursday without rain, that will be an 18 day streak without measurable precipitation.

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