The temperatures in Green Bay in August are comfortable with low of 15°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Green Bay during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Green Bay in August 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
25° / 15°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
108
mm
Sun Hours
10.6
Hrs
