A heat advisory is in effect for New York City as temperatures are expected to soar well above seasonal averages, potentially reaching near record levels. Residents are advised to take precautions against extreme heat, including staying hydrated, seeking shade, and checking on vulnerable neighbors. The forecast also warns of high humidity, which could exacerbate the heat’s impact on outdoor activities and air quality. Authorities recommend limiting strenuous outdoor exertion to avoid heat-related illnesses.