Grafton, Iowa is a small town located in Worth County. The climate in Grafton is considered to be humid continental, with hot summers and cold winters. The town is located near several water resources, including the Winnebago River and nearby lakes. These bodies of water contain a variety of hydrology constituents, including nitrogen, phosphorus, and sediment. Outdoor recreation opportunities in Grafton include fishing, kayaking, and hiking along the nearby trails. The town is also home to several parks, including the Grafton City Park and the Winnebago River Wildlife Management Area, which offer opportunities for picnicking and wildlife viewing.