NEXT: Tracking summer-like pop up thundershowers for Friday and Saturday. The weekend brings some relief as temperatures dip slightly.

An air quality alert lingers through 11 p.m. tonight. Overnight temperatures stay mild with muggy feels.

Click here to find cooling centers across New York City.

TODAY & TONIGHT/JUNTEETH: Hot, hazy and humid. Highs near 88-92. Overnight lows near 73.

THURSDAY/FIRST DAY OF SUMMER: Stepping into summer - hot! Near record challenging highs hovering near 95-97. Overnight lows stay mild, 74.

FRIDAY: Still spicy! The worst day of the heat wave. Afternoon pop up rumbles and thundershower possible. Highs near 97. Overnight lows near 75.

SATURDAY: Sunshine with clouds. Pop up thundershowers possible after 2 p.m. Highs near 88. Overnight lows near 71.