Winigan is a small town located in Sullivan County, Missouri. It experiences a humid continental climate, characterized by hot and humid summers and cold winters. Average temperatures range from around 25°F (-4°C) in January to 85°F (29°C) in July. Precipitation is moderate throughout the year, with an annual average of around 40 inches.

Hydrologically, Winigan is situated in the Chariton River watershed. The Chariton River, along with its tributaries, plays a vital role in the region's hydrology. These water bodies provide various recreational opportunities, including fishing, boating, and canoeing. Anglers can expect to catch a variety of fish species, such as bass, catfish, and crappie.

In terms of outdoor recreation, Winigan offers a serene and picturesque natural environment. The town is surrounded by beautiful countryside, making it ideal for hiking, camping, and wildlife observation. Additionally, Winigan is located near several state parks and conservation areas, providing further opportunities for outdoor activities. These include Thousand Hills State Park, Union Ridge Conservation Area, and Locust Creek Conservation Area. Whether it's exploring nature or engaging in water-based activities, Winigan has much to offer for those seeking outdoor adventures.