Philadelphia September 20, 2017 11:45 pm NBC10 First Alert Weather: Mix of Sun and Clouds We’re in for a mix of sun and clouds for the rest of the week. NBC10 First Alert Weather chief meteorologist Tammie Souza has the details. US & World Videos 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 2:09 Big weekend warm-up expected