Philadelphia October 1, 2018 6:36 am NBC10 First Alert Weather: Sunny, Warm Monday Sun and warmth to start October. NBC10 First Alert Weather meteorologist Krystal Klei has details. US & World Videos 2:14 The summer preview continues 2:16 Clearing out, warming into the 80s 3:04 Another hot day with chance for isolated morning showers 3:12 Pop-up showers possible Tuesday night for parts of the region 2:35 Warm trend continues, but rain is on the way