Chicago Weather September 22, 2020 5:31 am Tuesday Forecast NBC Storm Team 5 meteorologist Pete Sack has your latest forecast update. Local 2:02 Tuesday Afternoon Forecast: Scattered Showers and Storms 2:33 Tuesday morning weather 1:43 CHICAGO FORECAST: Scattered afternoon thunderstorms expected Tuesday 2:16 Chicago Forecast: More storms later today 2:17 CHICAGO'S FORECAST: More Storms Develop on Memorial Day