South Byron, Wisconsin is a small town located in the southeastern part of the state. It experiences a humid continental climate with warm summers and cold winters. The average temperature in summer ranges from 70°F to 80°F, while winter temperatures can drop below freezing, averaging between 20°F and 30°F. South Byron receives an average annual precipitation of around 35 inches, which is fairly evenly distributed throughout the year.

In terms of hydrology constituents, South Byron is surrounded by several bodies of water, including the scenic Lake Geneva to the west and the Rock River to the east. These water resources provide opportunities for fishing, boating, and water sports activities. Additionally, there are numerous parks and nature preserves in the area that offer hiking trails, camping sites, and picnic areas for outdoor enthusiasts.

Overall, South Byron, Wisconsin offers a diverse climate, ample water resources, and a variety of outdoor recreation opportunities that make it an attractive destination for both residents and visitors alike.