Typically, you can expect that the weather in Green Bay right through the month of September is 15. Highs are expected to be 23 degrees celsius and a low of 10 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 15 |
| High Temperature | 23 |
| Low Temperature | 10 |
Useful Links: Green Bay Weather: Average Weather & Yearly Climate