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Cooler, cloudy skies and unsettled weather for Long Island

Have the umbrella handy for hit and miss showers. Keeping an eye on a coastal storm towards the end of the week.

Rich Hoffman

Sep 21, 2026, 12:15 PM

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Mostly cloudy with sunny breaks. We can’t rule out a spotty, hit-or-miss shower later in the day. It will also be a little breezy at times, with highs generally in the 60s to around 70 degrees.

Long Island Today forecast

Tonight stays mostly cloudy with a continuing breeze. Most of the night should be dry, but the clouds aren’t going anywhere. Temperatures will turn cooler, with overnight lows dropping into the 50s.

Long Island tonight forecast

Tuesday brings another mostly cloudy and breezy day. A couple of spotty showers will be possible, although this does not look like an all-day rain. Temperatures remain on the cool side, with afternoon highs only in the 60s. Wednesday looks similar, with mostly cloudy skies, breezy conditions and temperatures continuing to run in the 60s.

Long Island tomorrow forecast

Our attention then turns toward the end of the week. Thursday into Friday could bring gustier winds, plenty of clouds and another chance for showers. We’ll also be watching the potential for a coastal storm to develop toward the end of the week and into the weekend. There is still uncertainty with the exact track, timing and strength of any storm, so expect the forecast to be fine-tuned over the next several days.

Long Island 10 day forecast

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