It took exactly two years, but temperatures finally surged past 89 degrees Monday at Long Island MacArthur Airport, as the thermometer there topped off at 94 degrees, the National Weather Service said.

What's more, the feels-like temperature reached 97, thanks to the humidity, meteorologists said.

The stretch of days that hadn't reached 90 degrees began July 21, 2013. It is the longest since the weather service started keeping records at the airport in 1984, according to the Northeast Regional Climate Center, based at Cornell University.

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The previous longest stretch was 709 days, from July 6, 2003, to June 13, 2005.

Tuesday's forecast doesn't call for conditions to be as hot and humid. But it still will be "very warm, with highs near 90 except along the South Shore, where it will be slightly cooler," said Bill Korbel, News 12 Long Island meteorologist. There's also "a chance of widely scattered late afternoon and evening showers and thunderstorms."

Temperatures on the Island are expected in the high 80s, said Jay Engle, a meteorologist with the weather service's Upton office. Temperatures at the airport are expected to hover near 89, meaning a second 90-degree day is not out of the question.

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Look for relief, though, for the rest of the week, with Korbel saying that conditions "turn cooler and less humid" starting Wednesday.

The weather service is looking at highs in the mid to low 80s for Wednesday, Thursday and Friday.

Because of the heat, the Town of Hempstead said Monday it would open 15 senior centers to the public through Wednesday as "cooling centers." The town also is extending hours at 13 pools.

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Nassau County also said it was opening cooling centers through Tuesday in Hicksville, North Massapequa, Rockville Centre, Lawrence and Glen Cove.

Monday evening, a strong thunderstorm that crossed parts of the Island with winds of more than 40 mph also knocked out power to thousands of PSEG Long Island customers in Nassau and Suffolk. But by nightfall, the outages were listed by the utility at fewer than 1,000.