Today, the hottest city in the United States is: Phoenix, AZ — 100°F
Updated
Updated
Readings come from a curated list of incorporated US cities with a population of 50,000 or more, each mapped to its nearest National Weather Service reporting station. Remote stations and unincorporated places are excluded on purpose. Each figure is the most extreme observation recorded at that station during the city's own local day, which is not the same as the official daily summary the NWS publishes after the day closes.