Lewistown, Ohio is a small town located in Logan County in the western part of the state. The climate in Lewistown is classified as humid continental, with warm summers and cold winters. Average temperatures range from the low 20s Fahrenheit (-6°C) in winter to the mid-80s Fahrenheit (29°C) in summer. The area experiences moderate precipitation throughout the year, with the highest rainfall occurring in the summer months.

Lewistown is home to several hydrology constituents, including the Great Miami River, which flows through the town. This river offers opportunities for boating, fishing, and kayaking. Additionally, Lewistown is surrounded by numerous lakes and reservoirs, such as Indian Lake and Chippewa Lake, providing further outdoor recreational options.

Outdoor enthusiasts will find plenty of activities to enjoy in Lewistown. The area offers opportunities for hiking, biking, and camping in nearby state parks and forests, including the picturesque Indian Lake State Park. Fishing is also popular, with various species available in the local waterways. Overall, Lewistown provides a charming, natural setting for residents and visitors alike to explore and engage in outdoor recreation.