Eve Margaret and Joe Salvatore, both of Medford, sing while...

Eve Margaret and Joe Salvatore, both of Medford, sing while sitting on Mascot Dock in Patchogue on Friday. "We're staying cool, and sharing the joy of music with the people," Margaret said. Credit: Newsday/Steve Pfost

Long Island will remain under a heat advisory through Sunday, according to the National Weather Service, as several beaches and cooling centers extend their hours to accommodate people seeking relief from the heat.

Temperatures on Long Island will reach the low 90s on Saturday, the weather service reports. Saturday night, temperatures will fall to about 75 degrees.

Bill Goodman, a meteorologist with the National Weather Service, said that by Sunday Long Island will have three straight days of 90-degree weather, but Sunday's expected forecast will fall short of the record high on Long Island which was 96 degrees in 2010.

As the heat is expected to remain in the 90s, several Long Island communities will have cooling centers open through Sunday.

Nassau County will have the Cantiague Park Administration Office and the Wantagh Administration Building open from 8 a.m. to 6 p.m. The Mitchel Field Administration Building will stay open 24 hours.

Hempstead Town beaches including Point Lookout, Lido Beach, Nickerson Beach and East Atlantic Beach will stay open until 7 p.m. on Sunday.

In Oyster Bay, cooling centers will be available through Sunday at Marjorie Post Park Skate House, Syosset-Woodbury Park Skate House, and Town of Oyster Bay Ice Skating Center.

In Suffolk County, cooling centers are run by the towns and residents should contact their local municipality to find a location near them.

Meanwhile, Gov. Kathy Hochul warned New Yorkers to prepare themselves for the excessive heat this weekend.

“New Yorkers are incredibly resilient, but when it comes to extreme heat and humidity in the summertime, there are measures that need to be taken to stay safe including staying indoors, reducing electricity usage and keeping hydrated," Hochul said in a statement.

An air quality alert has extended through Sunday for New York City and Long Island due to elevated levels of ozone.

"Heat index values on Saturday will range in the 95-99 degree range for almost the entire CWA (county warning area) with heat values reaching the 95-104 mark on Sunday," the weather service said.

Monday is expected to be mostly cloudy with a 50% chance of showers and thunderstorms after 2 p.m. The high temperature is predicted to be about 86 degrees.

There is a chance of rain Tuesday morning, but the day should otherwise be partly sunny, with a high in the mid-80s, according to the weather service.

Wednesday is expected to be dry, with more rain and storms possible on Thursday. Highs both days will be in the mid-80s, the weather service said.

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