Prasad Narasaiah, of East Meadow, bundles up to take a...

Prasad Narasaiah, of East Meadow, bundles up to take a walk in Eisenhower Park on Monday, Dec. 25, 2017 in East Meadow. A cold week is coming up for Long Island, the weather service says. Credit: Barry Sloan

Long Islanders will have to keep up their holiday cheer this week even as temperatures dip down.

Tuesday is expected to be the warmest day before 2018 begins, with a high temperature of around 30, according to the National Weather Service. The average high temperature for this time of year is 10 degrees warmer.

“Certainly, it’s a good time to stay inside if you have that luxury and have the week off,” said Faye Morrone, a meteorologist with the weather service in Upton.

Winds could also pick up around 10 a.m., the day after a wind advisory was in effect for gusts of between 46 and 61 mph. Christmas Day winds caused some power outages, brought down a tree that blocked Route 25A in Centerport and toppled a tree that fell into an SUV parked on Montauk Highway in East Moriches, officials said.

“It’ll be a cold week coming up,” Morrone said.

Wednesday’s high will be in the mid-20s, and Thursday’s temperatures will barely make it to 20 degrees in some places, she said.

Morrone advised Long Islanders to keep their pets inside and to pay attention to issues with frozen pipes.

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