The extreme heat is prompting several warnings for the NYC area today, including a heat advisory and an air quality alert.

A heat advisory and extreme heat warning will be in effect as hot and humid conditions hit Delaware today. See the weekend weather forecast.

Parts of the U.S. Northeast are set to sizzle as temperatures soar on Friday, with New Jersey, New York City and Boston set to see highs well into the 90s. New Jersey residents have been warned about a potentially dangerous combination of sweltering heat and severe thunderstorms on Friday.

A heat advisory is in effect for City through Friday evening, with temperatures expected to rise sharply in the afternoon as forecasters warn a combination of heat and humidity could make it feel as hot as 105 degrees in parts of the city.

After a few days of cooler weather, the heat and humidity are set to return, prompting city officials to declare a heat advisory for Friday. The advisory runs from 11 a.m. to 8 p.m. as daytime temperatures are expected to reach the mid-90s.

New York City remains under a heat advisory Thursday, as high temperatures hit the 90s and feel more like triple digits. The National Weather Service allowed Wednesday's heat advisory to remain in effect until 10 p.m. Thursday. It's another First Alert Weather Day as we monitor the dangerous heat and humidity around the area.