Chicago Weather August 5, 2024 5:27 am Monday morning weather Alicia Roman has the latest forecast. Local 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 2:19 CHICAGO'S FORECAST: The Warm-up Begins!