Any reindeer aloft Sunday on Christmas Eve likely will be hard to spot; forecasters are predicting rain.
On Christmas Day, however, “By the time most people wake up, the precipitation will be over,” said Brian Ciemnecki, a National Weather Service meteorologist based in Upton.
“Most of the precipitation falls Sunday night into Monday morning; it may end as a rain-snow mix,” he said.
Anyone searching for snow probably will have to head north of New York City and across Connecticut, he said.
Sunday’s daytime high will be around 43 degrees, the NWS said. On Sunday night, the temperature will drop to a low of 33, though it will feel closer to between 25 and 30 degrees because of winds traveling around 14 mph.
There is a 90 percent chance of precipitation overnight Sunday, mostly rain. On Long Island, no snow is expected to accumulate.
By Monday afternoon, winds will blow from the west at 18 to 28 miles per hour, and temperatures will reach about 42 degrees.
“The normal temperatures for this time of year are in the low 40s, so this isn’t really unusual weather,” said National Weather Service meteorologist Melissa Di Spigna.