Philadelphia June 21, 2018 5:58 am NBC10 First Alert Weather: Summer Arrives We have light showers on this Thursday morning, with temperatures in the 70s. A sunny warm-up is coming on this first day of summer. 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
