 which heat is the number one weather-related killer in the United States every year. So take the heat precautions seriously. Water, shade, sunscreen limits your time outside. Air temperature forecast of 97 today, 100 tomorrow, and 101 for your Tuesday. I'm 7 News. I'm your geologist, Rory Devins, in the Furshler Weather Center. 98 degrees outside the WTOP studios at 240.