Philadelphia December 11, 2017 7:27 pm NBC10 First Alert Weather: Dangerous Cold This Week NBC10 First Alert Meteorologist Glenn “Hurricane” Schwartz is tracking cold conditions moving into our area this week. US & World Videos 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 3:05 Temperatures to heat up over the weekend 2:05 Warming into the 80s by weekend's end