Philadelphia November 3, 2017 11:36 pm NBC10 First Alert Weather: Quick Chilly Change The cold air is moving in. Saturday will be much chillier, but temps are swinging up and down this week. NBC10 First Alert Weather Chief Meteorologist Tammie Souza has your most accurate forecast. US & World Videos 2:38 Sunny and summer-like 2:41 Let the sun shine and temps warm 2:13 Clouds give way to sun as temps warm to around 80 2:44 Gray, warmer Monday 2:24 Gray Monday