Residents in the Southeast U.S. are no strangers to hot weather in the summertime, but the sweltering heat this week set at least one record, and forecasters urged residents to limit being outside if possible and to hydrate. The all-time high temperature record at Tampa International Airport was broken on Sunday when the thermometer hit 100 degrees Fahrenheit (37.8 degrees Celsius). The previous record had been 99 degrees Fahrenheit ( 37.2 degrees Celsius) set in June 2020. The National Weather Service said Tuesday that the prolonged heat wave was expected to peak in the southeast U.S. at mid-week.