Typical Weather in Chicago, IL in August
81° F Avg High
69° F Avg Low
0 Rainy Days
☀️ Temperature Summary
August is a popular time of year to visit, with an inviting climate characterized by warm temperatures. August is one of the warmer months of the year for Chicago, with highs averaging around 81°F. Overnight lows will be around 69°F on average. Daily high temperatures can range between 82°F and 79°F, and typically fall throughout the month.
The warm, dry temperatures in August make Chicago a great destination to relax and soak up the sun.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In August you can expect close to a 0% chance of rain for any given day. It rains more than usual in August, with total rainfall for the month typically near NaN inches.
Rainfall Throughout the Year
Planning a trip to Chicago? Try our free trip weather planner