philly forecast February 20, 2020 12:08 pm NBC10 First Alert Weather: Chilly Stretch NBC10 First Alert Weather meteorologist Steve Sosna is tracking chilly temps for Thursday and Friday before a weekend warm-up. US & World Videos 2:22 Another warm day as high temps flirt with record 3:08 One more warm day before temperatures drop over the weekend 2:40 How long will this summer-like warmth last? 2:14 The summer preview continues 2:16 Clearing out, warming into the 80s