Loudonville, Ohio is a small village located in the north-central part of the state. It experiences a humid continental climate, characterized by hot summers and cold winters. Summers are generally warm, with temperatures often reaching the high 80s°F (around 30°C), while winters are cold and snowy, with average temperatures ranging between 20°F to 30°F (-6°C to -1°C). The area typically receives moderate rainfall throughout the year.

The hydrology constituents in Loudonville are diverse, with the village being situated in the heart of the Mohican River watershed. This provides ample opportunities for various water activities, such as fishing, kayaking, and canoeing. The nearby Mohican State Park, encompassing over 1,100 acres of lush forests and stunning landscapes, offers hiking trails, camping sites, and opportunities for wildlife observation.

Outdoor recreation enthusiasts will find plenty of opportunities in Loudonville. The Mohican-Memorial State Forest, adjacent to the state park, provides additional hiking trails, picnic areas, and hunting grounds. Loudonville's proximity to the Clear Fork Mohican River and Pleasant Hill Lake also offers opportunities for boating, swimming, and fishing. With its beautiful natural surroundings and abundant recreational options, Loudonville is an attractive destination for nature lovers and outdoor enthusiasts.