Clemons, Iowa is a small town located in Marshall County. Its climate is considered humid continental, with cold winters and warm summers. The town is situated near the Iowa River and relies heavily on groundwater resources. The area's hydrology constituents include nitrates, phosphates, and pesticides, which can impact water quality. Fishing and hunting are popular outdoor recreation activities in Clemons, with the Iowa River providing opportunities for catfish, bass, and other species. The nearby Green Castle Recreation Area also offers camping, hiking, and boating options for visitors. Overall, Clemons offers a small-town feel with access to outdoor activities and natural resources.