If you liked Tuesday's cold weather, stay tuned.
Wednesday and Thursday promise the same 10- to 15-degree- below-average temperatures, said the National Weather Service.
And on deck for Friday? A "high probability" of snow, said Joey Picca, weather service meteorologist in Upton.
Just past noon Tuesday, the temperature in Islip was 20 degrees, though it felt more like 5 degrees with the wind chill, Picca said.
The daytime high was 22, said John Murray, a meteorologist also in Upton, with Islip's low Tuesday night forecast to be 10 degrees.
The last time Islip's temperature dipped to 10 was Jan. 16, 2012, Picca said.
Temperatures are expected to rise to the low 30s on Friday, when a storm system moves in from the Midwest that will probably dump snow on the Island, Picca said. It was uncertain how much, as forecasting models indicate a range from "a couple" to more than 6 inches, he said.
The snow may start late Friday afternoon or evening, but even that timing "is subject to change," he said.
As for concern that this cold spell may portend an overall frostier winter than last year's, Picca said the long-term forecast indicates a better chance for a return to above-normal temperatures in the next six to 10 days.
And, for those seeking respite from the cold, consider these "warmer" locales.