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Humidity builds and clouds increase over Long Island for the weekend; when is next chance of rain?

Some clouds develop today with a slight chance of a shower. Humid and warm for weekend.

Rich Hoffman

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Jul 31, 2026, 12:16 PM

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Long Island Radar 3 hour loop

Happy Friday! We're looking at a beautiful start to the day with mostly sunny skies and warm, humid conditions. Most communities will stay dry, although a sea breeze developing later this afternoon could spark an isolated shower or thunderstorm in a few spots. Otherwise, it's shaping up to be a great day to get outside, with afternoon highs in the lower 80s and upper 70s along the shoreline. If you're spending time outdoors, don't forget the sunscreen because the UV index will be very high.

Long Island Today forecast
Long Island Marine Forecast

Tonight, skies will turn partly cloudy, making for a warm and somewhat muggy night. Overnight temperatures will settle into the 60s to lower 70s, and most areas will remain dry, providing pleasant conditions for any evening plans.

Long Island tonight forecast

As we head into Saturday, expect plenty of sunshine through the morning with a few afternoon clouds mixing in later in the day. It'll stay warm and a bit humid, with highs climbing into the 80s inland and holding in the 70s at the beaches. Saturday night will feature partly cloudy skies, with periods of mostly cloudy conditions developing overnight. Lows will once again fall into the upper 60s and lower 70s.

Long Island tomorrow forecast

Looking ahead to Sunday, we'll see a mix of sun and clouds with warm and humid weather continuing. High temperatures will reach the lower 80s inland and remain in the 70s along the shoreline. As we head into Sunday night and Monday, keep an eye on the forecast, as showers and thunderstorms are expected to develop, bringing the next chance for wet weather to end the weekend and start the new week.

Long Island 10 day forecast

LOCAL DROUGHT UPDATE

Every Thursday morning, a new update to our local Long Island drought conditions is released. This week, there were not many changes. Most of Long Island is still in a moderate drought. The East End is still in a severe drought. This only takes in data through this past Tuesday. Rain from this Wednesday will be included in next week's update.

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LONG ISLAND WATER QUALITY

Every Thursday, we also have a new update on local water quality here on Long Island. Conditions remain generally good to fair, with only six of the 30 sites tested having poor water quality. You can see where those areas are in the images below. It is important to always check with the local county health departments for more information on where swimming is allowed.

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