Cold and dry weather will continue across Long Island through Thursday night. Even with a small daytime warm-up, temperatures will stay well below normal—about 10 degrees colder than average during the day, and 10 to 15 degrees colder at night.

Real feels in the morning will still be very cold, between 0 and 10 degrees. There may be a flurry overnight, otherwise no rain or snow is expected during this time, as any weather systems passing nearby will lack moisture.

By Thursday night, clear skies and lighter winds could allow temperatures to drop even more, making it one of the colder nights of the week.

Late Friday into Friday night, a fast-moving weather system may bring a chance for light snow to Long Island. Moisture will be limited, so any snowfall is expected to be light, but the cold air already in place means even small amounts could stick. A few brief snow squalls are possible Friday night into early Saturday morning, especially as an arctic cold front moves through. Snow should taper off early Saturday morning as the front pushes east.

Behind that front, much colder air will rush in for the weekend along with strong northwest winds. Saturday and Sunday highs will only reach the teens to near 20 degrees, with overnight lows dropping into the single digits. Gusty winds—up to 35 to 40 mph at times—will make it feel dangerously cold.

Wind chills could fall below zero Saturday afternoon and drop to between 10 and 20 degrees below zero Saturday night, especially away from the immediate coast. These harsh wind chills may continue into Sunday, creating potentially dangerous conditions across Long Island.