Typical Weather in Champaign, IL in September
80° F Avg High
56° F Avg Low
5 Rainy Days
☀️ Temperature Summary
September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. September is one of the warmer months of the year for Champaign, with highs averaging around 80°F. You can expect overnight lows near 56°F most days. Daily high temperatures can range between 82°F and 73°F for the month of September.
September is a great time to visit Champaign, with mild temperatures and sunny days being very common.
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 September you can expect close to a 16% chance of rain for any given day. It rains less than usual in September, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
Planning a trip to Champaign? Try our free trip weather planner