Philadelphia March 7, 2019 12:15 pm First Alert Weather: Changes Coming This Weekend NBC10 First Alert Weather meteorologist Glenn “Hurricane” Schwartz is tracking more cold temps ahead of weekend warm-up. Some snow is also expected Friday. US & World Videos 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 3:04 Another hot day with chance for isolated morning showers