Long Islanders heading to the Bethpage Air Show at Jones Beach or planning cookouts, boating or other outdoor activities Sunday might need a jacket because slightly lower temperatures are expected.
Temperatures will cool off a bit across the Island, and the high will be 65, accompanied by mix of sun and clouds and a low of 53, the National Weather Service said.
“It’ll be on the cool side — the average high is 71 and the low 53 — so we’ll be a few degrees cooler for the high,” said Bill Goodman, a meteorologist with the weather service’s Uptonbureau.
The rest of the long Memorial Day weekend will probably be much cloudier than Saturday as well.
On Sunday morning, most communities will see temperatures in the upper 50s, said National Weather Service meteorologist, Joe Pollina. That’s when people would probably want to wear a light sweater or a jacket, he said. There could also be some spotty drizzle Sunday morning.
After the morning chill, most of Long Island is expected to jump maybe seven or eight degrees warmer, Pollina said. The exception: the Twin Forks. Pollina said the East End coasts will likely stay in the lower 60s.
However, the central parts of the island will see temperatures in the mid-to-upper 60s.
Those heading to the air show in the afternoon can expect cloudy skies but probably won’t see any rain showers, the weather service said.
The weather service issued a coastal flood advisory Saturday for southern Nassau County that lasts until 2 a.m. Sunday. Pollina said meteorologists expect to reissue that advisory for 10 p.m. Sunday until 3 a.m. Monday. There could be minor flooding of vulnerable shoreline areas, the weather service said.
The clouds will really roll in for Monday — the official observance of Memorial Day — when Goodman said there is a “likelihood of showers and maybe even a rumble of thunder.”
Amid the possible thunderstorms, the high at MacArthur Airport in Islip Monday will be near 63 and the low 54 on Monday, according to the weather service.