The weekend kicked off Friday evening with what could feel like one of the coldest of winter days.

While the temperature falls to 18 degrees, the wind chill factor could make it feel like somewhere between 5 degrees and 15 degrees, the Upton-based National Weather Service said.

Not only can Islanders expect wind gusts of as much as 31 mph, but there also is a 50 percent chance of snow showers during the dinner hour, from 7 p.m. to 9 p.m., the NWS said.

“It’s going to feel more like January around Long Island,” News 12 Long Island meteorologist Rich Hoffman said.

Saturday will be mostly sunny, but the high, near 29 degrees, will be notably colder than the 44 degree temperature typically seen at this time of year.

And look out again for that wind chill, which will mirror Friday’s shiver-inducing effect.

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The thermometer plunges as low as 12 degrees on Saturday night, taking the wind chill down with it. To anyone outside, it could feel like minus-5 degrees to plus-5 degrees, the NWS said.

Sunday, though the high should climb to about 25 degrees, will again subject Islanders to a winterlike wind chill, the NWS said.

After temperatures fall as low as 14 degrees Sunday night, Monday should see a return to more clement temperatures usually seen in spring, with a high near 44.