 TOP traffic. Cloudy and muggy to start this Sunday with temperatures only in the low to mid 70s. Now as we head towards this afternoon, the threat for strong to severe storms is there as well as another very hot afternoon. Temperatures may get into the mid 90s with heat index values making it feel anywhere from 100 to 105 degrees. I'm 7 News meteorologist Mark Pena in the First Alert Weather Center. 81 at Fort Belvoir, 78 degrees at Silver Spring. It's 81 degrees here at WTOP in Friendship Heights at 359.