Philadelphia January 5, 2018 5:11 pm NBC10 First Alert Weather: Coldest Air in Decades A cold stretch that hasn’t been felt in decades is settling in. How long will this last? NBC10 First Alert Weather meteorologist Steve Sosna has your forecast. US & World Videos 3:15 Your look at workweek weather forecast 2:40 Feeling like summer with some chances for showers 3:03 Cloudy with some rain likely for Sunday 3:34 Beautiful evening for a Phillies game with clear skies and pleasant temperatures 1:03 From the Delaware Beaches to the Jersey Shore. What's the weather looking like this Saturday?