Philadelphia August 14, 2018 11:55 pm NBC10 First Alert Weather: Heat and Humidity Set to Return We’ll finally get a break from the rain but the heat and humidity will return Wednesday and Thursday. NBC10 First Alert Weather chief meteorologist Tammie Souza has the forecast. US & World Videos 3:01 Keep your umbrellas handy as rain will be on and off all week 2:35 Isolated showers continue Sunday night into the morning 3:02 Runners can expect a wet, rainy Sunday morning 2:36 Gloomy weather sticks around for Sunday's Broad Street Run 2:44 Cloudy, chance for rain this weekend