Mendon, Missouri is a small town located in Chariton County. It experiences a humid continental climate, characterized by hot, humid summers and cold winters. Summers are typically warm, with average temperatures ranging from the mid-80s to low 90s Fahrenheit. Winters, on the other hand, can be quite cold, with average temperatures in the 20s and occasional sub-zero temperatures. The climate is also prone to thunderstorms and occasional tornadoes.

In terms of hydrology constituents, Mendon is situated near the Chariton River, which provides a source of water for the town and surrounding areas. The river also offers opportunities for fishing and boating.

Outdoor recreation opportunities in Mendon include hunting, fishing, and camping. The area is well-known for its abundant wildlife, making it a popular destination for hunters. The Chariton River is home to various fish species, including bass, catfish, and crappie, attracting fishing enthusiasts. Additionally, there are several nearby parks and conservation areas where visitors can enjoy hiking, picnicking, and observing nature.

Overall, Mendon, Missouri offers a diverse range of outdoor activities and showcases the beauty of the region's natural environment.