In an about-face from last week, this workweek is taking a turn for the cool, with Monday’s expected highs of about 60 degrees the warmest that Long Islanders can expect in the coming days.

With chilly conditions ahead, below-normal temperatures are expected to be on deck through Friday, said Rich Hoffman, News 12 Long Island meteorologist.

At shortly before 1 p.m., the temperature at Long Island MacArthur Airport hit 61 degrees, with wind gusts of 30 mph, according to the National Weather Service, which forecasts overnight lows in the upper 30s.

The low 60s are considered normal highs for the coming days, said David Stark, weather service meteorologist based in Upton.

Temperatures for Monday night should turn sharply colder, with lows in the lower and middle 40s across New York City and the immediate coast, and middle to upper 30s elsewhere.

Tuesday is forecast to reach only the lower 50s, with sunny and mostly sunny skies, and overnight lows mostly in the mid- to upper 30s, he said.

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The coldest readings of the season are expected Tuesday night into Wednesday.

Wednesday, also with sunny skies, looks to see the lower 50s, with some parts of the South Fork dipping to the upper 40s for highs, and overnight lows also in the mid- to upper 30s. The last time a high in the 40s was recorded at Long Island MacArthur Airport was May 1, when 49 degrees was reached, Stark said.

While it’s not in the forecast for Long Island, there is the potential for other neighboring areas, especially the Hudson Valley north of New York City, to see in the early morning hours of Thursday a window for snow/wintry mix, he said. That depends, in part, on the arrival time for a precipitation system.

What that means for Long Island? It’s a sign, said Stark, that October is coming to a close, November is on the horizon, and “winter is right around the corner.”