Chicago Weather October 18, 2023 4:20 am Wednesday morning weather Alicia Roman has the latest forecast. Local 2:28 CHICAGO'S FORECAST: Windy & Warm 2:24 Chicago Forecast: Great fall weekend before a big warm up 2:22 Chicago Forecast: 80° and sunny 2:05 CHICAGO'S FORECAST: Summer-Like Conditions Continue 2:18 Chicago Forecast: Bright and warm weekend for October