The official start of summer is delivering New York City its first heat wave of the season.
The Big Apple is bracing for temperatures expected to rise through the work week and hit the 90s by Thursday — the first day of summer — and Friday.
It marks the first sweltering stretch since September.
It will be humid, too, with “real feel” readings flirting with 100 degrees in the city, thanks to the urban heat effect, as concrete and reflective surfaces sizzle, according to Fox Weather meteorologist Cody Braud.
While New York might not officially reach 100 or break any records, nearby areas likely will, Braud told The Post.
“We’re going to be in the thick of it — but may escape the worst of it,” Braud said.
Newark, Philadelphia, Hartford, Connecticut and westward into Ohio and Michigan can expect to break record highs as early as Monday.
The heat wave will blanket at least 135 million people across the eastern United States and parts of eastern Canada, according to AccuWeather.
At the peak Thursday, the New York region is expected to hit a Level 4 heat risk, the highest on the National Weather Service’s index.
“New Yorkers should take every precaution they can over this next week to stay cool and stay safe as the combination of severe storms, heat and humidity will pose a significant health risk for vulnerable New Yorkers,” Gov. Hochul said on Thursday.
The mercury should tick down slightly in New York next weekend.