A wind advisory is in place Sunday until midnight, with sustained winds of 25 mph to 35 mph, and gusts up to 50 mph, said Joey Picca, meteorologist in the service's Upton bureau.
Picca said the winds are not expected to be damaging, but they could dislodge small tree branches and blow snow onto roads. Widespread power-line issues are not expected, Picca said.
Sunday's highs will be around 30 degrees, but the windchill will make it feel more in the teens, Picca said. Lows on Sunday will be in the teens across Long Island, with the windchill making it feel like temperatures have dipped into the single digits, Picca said.
The chilly day caps off a brief snowfall that mostly fell in Eastern Suffolk County on Saturday overnight into Sunday, Picca said. Bridgehampton received three inches, Patchogue, East Patchogue and Port Jefferson received two inches, while Holbrook received 1.5 inches and Mattituck received one inch, Picca said.
Authorities on the East End said that roads were passable, but a bit slippery in some areas.
There will be increasing chances for light rain showers on Tuesday, especially in the afternoon and evening, when the forecast turns to a chance of brief light snow mixed with rain, Picca said. High temperatures on Tuesday will be in the mid 40s, while lows will be in the upper 20s or low 30s.
On Wednesday, highs will be in the mid-30s, with lows in the upper teens to low 20s.
Thursday, highs will be in the mid-30s, with slightly colder temperatures on eastern Long Island, Picca said. Lows on Thursday will be in the low 20s.
Friday brings a slight chance for light snow showers mixed with rain. Highs will be in the mid- to upper-30s.