Chicago Forecast September 4, 2021 7:50 am Saturday Forecast: Mostly Cloudy With Scattered Showers NBC 5 Storm Team Meteorologist Pete Sack has the latest forecast for the Chicago area. Local 2:44 Monday morning weather 2:22 CHICAGO'S FORECAST: Rainy Monday Commute 2:10 Chicago Forecast: More storms in the forecast 2:22 CHICAGO'S FORECAST: Storms throughout Sunday 2:29 Chicago Forecast: Warm & windy Saturday; strong evening storms