January 13, 2017 7:09 am NBC10 First Alert Weather: Temperatures Cool Down Drastic changes are headed our way as temps drop. NBC10 First Alert Weather meteorologist Bill Henly explains. US & World Videos 2:43 Philly is warmer than Miami, Florida, Monday 2:06 Feeling like summer 2:36 A summer preview 2:50 One more cool day, then warmer weather ahead 3:15 Cold night, then a big warmup this weekend