Though a break is forecast for Saturday, a lingering arctic air mass will keep Long Island in a deep freeze, the National Weather Service said Friday.
"A series of low-pressure systems will impact the region from Saturday into Monday," the Upton-based service said, "each bringing behind it a reinforcing shot of cold air."
Translation: Expect bitter cold into early next week, with windchill factors that make single-digit temperatures feel as icy as minus 15.
In a special weather statement in effect until further notice, the service also said it will be mostly dry during the cold snap, as frigid conditions continued Friday under a moderating arctic air mass.
Highs Saturday should reach the mid-30s in some areas, the weather service said.
Friday's highs topped out in the mid- to upper teens, with gusty winds up to 28 mph from the southwest Friday night.
There also is a slight chance of snow in most areas of Long Island before 11 a.m., and snow again between the midmorning hours and late afternoon.
Chance for precipitation Saturday ranges from 70 percent during the day to 40 percent at night. Snow accumulation Saturday is expected to be less than an inch in most areas, the service said.
By Saturday night, temperatures fall into the mid teens, with windchill values at zero or below.
The pattern of daily high temperatures in the 20s and nighttime lows in single digits continues through Wednesday, the service said.