The temperatures in Green Bay in October are quite cold with temperatures between 6°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Green Bay during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Green Bay can expect a few days of snow in October.
Our weather forecast can give you a great sense of what weather to expect in Green Bay in October 2025.
If you’re planning to visit Green Bay in the near future, we highly recommend that you review the 14 day weather forecast for Green Bay before you arrive.
Temperatures
13° / 6°
Rainy Days
7
Snowy Days
2
Dry Days
23
Rainfall
111
mm
Sun Hours
8.3
Hrs
