weather forecast September 3, 2021 11:43 pm Cool, Calm Holiday Weekend Greets Philly Region Chilly nights and temperate days will usher in the unofficial end of summer this holiday weekend. US & World Videos 2:36 Gloomy weather sticks around for Sunday's Broad Street Run 2:44 Cloudy, chance for rain this weekend 2:41 The weekend kicks off with mostly cloudy skies and passing showers 2:31 Back to cooler temperatures 2:36 Back to spring temperatures