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Long Island weather: A muggy Fourth, but a clear night for fireworks

Beachgoers crowd Jones Beach on Independence Day.

Beachgoers crowd Jones Beach on Independence Day. Credit: Howard Schnapp

The seasonal sunny, warm and muggy weather, typical of July 4, will give way to patchy fog later Thursday night,  National Weather Service forecasters said.

But don't worry, forecasters say, the fog won't roll in until after the celebration.

“It’s not going to be a threat to fireworks,” said Phillip Pandolfo, a Weather Service spokesman in Upton, who said temperatures will dip to 72 Thursday night and the fog may develop very late over parts of Long Island.

The rest of the Fourth of July weekend will be warm and humid with heavy showers expected for Saturday afternoon and evening, said Faye Morrone, a meteorologist with the National Weather Service.

Temperatures on Friday will be in the lower 80s with a chance of showers in the evening in parts of Nassau County close to New York City, Morrone said. “It will be on the humid side, so it will feel several degrees warmer than that,” she said.

Saturday will continue to be warm with highs in the mid-80s. There’s a 60 to 70 percent chance of showers and thunderstorms from Saturday afternoon until 8 or 10 p.m., Morrone said.

“Some of the storms could produce heavy showers, given how humid it has been,” she said. “If you are going to be outside on Saturday, have a backup plan and a place to go in case you do see thunderstorms in your area.”

By late Saturday night, showers are expected to come to an end.

“That should leave us dry on Sunday,” Morrone said. Temperatures on Sunday will be in the low to mid-80s.

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