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Long Island forecast: Summer weather on first fall weekend

Friday should be mostly cloudy over Long Island,

Friday should be mostly cloudy over Long Island, but there will be winds gusting close to 30 mph and rough seas, forecasters said. Credit: News 12 LI

It’s looking to be a fine weekend — more akin to summer than the first Saturday and Sunday in fall, forecasters say.

That’s as Saturday is expected to head to the mid-80s, with around 71 degrees considered the normal high for this time of year, according to the National Weather Service. Sunday is looking at highs in the low to mid 80s.

Skies are expected to be mostly sunny on Saturday and sunny on Sunday.

“We have some nice weather for the first weekend of the fall,” News 12 Long Island meteorologist Matt Hammer said.

So, what to thank for the T-shirt and flip-flop weather?

The area is under a ridge of high pressure, which also is keeping Jose, now a post-tropical cyclone, close to stationary to the southeast of Long Island, said Joe Pollina, weather service meteorologist in Upton.

Still, swells from Jose should continue to result in a high risk of rip currents for Saturday, the weather service said.

And, expect “a prolonged period of rough surf at the ocean beaches,” thanks to long-period swells from Jose, as well as Hurricane Maria, which will be spending the weekend in the western Atlantic as it moves to the north.

As for Friday — the first day of fall — it should be mostly cloudy over Long Island, but there will be winds gusting close to 30 mph and rough seas, forecasters said. High temperatures will be in the mid 70s.

There’s also a possibility of scattered showers later in the day, mostly over the East End, Hammer said.

Cloud cover will gradually decrease from west to east through Saturday, the weather service said.

There is a high risk of rip currents at ocean-facing beaches through Friday evening.

The weather service issued an advisory for the risk of minor coastal flooding through 4 a.m. Saturday from southwestern Suffolk west through Nassau and into Queens.

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