Bethesda, Ohio is a small village located in Belmont County. The climate in Bethesda is classified as humid continental, with warm summers and cold winters. The village is situated along the Stillwater Creek, which is a tributary of the Ohio River. The hydrology constituents in the area include sediments, nutrients, and pollutants from agricultural and industrial activities. Outdoor recreation opportunities in Bethesda include fishing and boating on the Stillwater Creek, as well as hiking and camping at the nearby Barkcamp State Park.