Long Islanders can expect a cold, rainy and windy Saturday as temperatures drop into the 40s, brought in by a cold front from the west that came in overnight, the National Weather Service.

Temperatures across the Island were in the low 50s just after 7 a.m. Saturday, “potentially as warm as it’ll be today,” said Faye Barthold, meteorologist with the weather service’s Upton bureau. “It’s quite a bit colder this morning than it has been the past several days.”

A wind advisory is in effect until 6 a.m. Sunday with winds expected to pick up this afternoon to about 20 to 30 mph with gusts up to 50 mph, Barthold said.

Matt Hammer, News 12 Long Island meteorologist, said moderate downpours are expected through the middle of this afternoon before the area begins to dry out overnight.

The high temperature for Saturday peaked at 66 degrees just after midnight, he said.

“By this afternoon it’ll be quite chilly — you’ll need to put on the heavy jackets and use the umbrellas,” Hammer said.

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Hammer warned that the heavy winds could bring isolated power outages and downed tree limbs.

“We also have to watch out for this time of the year with leaves on the wet roads and traffic can become slippery — we have to watch out for that. It starts to act like icy roads,” Hammer said.

Temperatures will drop into the upper 40s through the afternoon, Barthold said, and will lower once again Saturday night into the lower 40s. Showers are expected on and off throughout the day, bringing about another quarter inch of rain to the area.

Sunday should be dry with temperatures warming up to the low 60s, Barthold said, getting close to the normal of 61 for this time of year at Long Island MacArthur Airport.

A “very early spot shower” could be expected Monday morning before turning mostly sunny in the afternoon. The Island should remain dry but with increasing clouds from Tuesday to Thursday with high temperatures in the low-to-mid 50s.