The temperatures in Wisconsin in August are comfortable with low of 18°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Wisconsin 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 Wisconsin in August 2025.
If you’re planning to visit Wisconsin in the near future, we highly recommend that you review the 14 day weather forecast for Wisconsin before you arrive.
Temperatures
25° / 18°
Rainy Days
5
Snowy Days
0
Dry Days
26
Rainfall
120
mm
Sun Hours
11.1
Hrs
