Franklin-Furnace, Ohio has a humid subtropical climate with hot summers and mild winters. The Ohio River provides the main hydrology constituent in the area. The river is prone to flooding, affecting nearby residents and businesses. Outdoor recreation opportunities include hiking and camping at the nearby Shawnee State Park, which features miles of trails and a lake for swimming and fishing. The park also has opportunities for boating and kayaking on Turkey Creek Lake. In addition, the Buckeye Trail runs through the area, providing opportunities for long-distance hiking.