People with underlying conditions like asthma or respiratory ailments were advised to stay indoors and use air conditioning, said OEM spokeswoman Nancy Silvestri.
The city’s cooling centers were not opened Monday, though people suffering from the heat could take advantage of air conditioned spaces like public libraries or supermarkets to cool down, Silvestri added.
Pascale Lepinasse, who was visiting from France, used a fan and mist spray bottle to try and cool down in the Chambers Street subway station.
"This is a town of extremes," Lepinasse said. "I came prepared"
Friends Ysée DuPont, 16, Léna Michel, 17, and Eléanor Chiabrini, 16, said the heat seemed much worse here than their native Paris.
"We knew it was going to be hot," DuPont said, "but the air pollution makes it hard to breathe."
Temperatures were expected to reach the upper-80s on Tuesday and drop back into the mid-80s on Wednesday, according to the National Weather Service.