The National Weather Service has issued a Heat Advisory for most of the New York City metropolitan region on Wednesday, July 16, warning that a combination of temperatures in the mid-80s to low-90s Fahrenheit and high humidity will push heat indices to between 95 °F and 102 °F. Forecasters expect partly sunny skies after morning clouds and fog, with only isolated afternoon or evening thunderstorms north and west of the city. The agency cautions that the conditions could produce heat-related illness, urging residents to limit outdoor activity, stay hydrated, and check on vulnerable individuals. A cold front arriving late Thursday may bring stronger thunderstorms and a brief cooldown heading into the weekend, but meteorologists say oppressive humidity will persist until the front fully clears the region.