Philadelphia September 25, 2017 5:45 am NBC10 First Alert Weather: Fall Heat NBC10 First Alert Weather meteorologist Krystal Klei gives the latest 10-Day Outlook for the start of Fall. 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