Weather temperatures in Chicago in the month of September is 16. Through the month the highs are about 24 and lows being 12 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 16 |
| High Temperature | 24 |
| Low Temperature | 12 |
| Sunshine Per Day | 10 |
Useful Links: Chicago Weather: Average Weather & Yearly Climate