Located in southern Missouri, Poynor experiences a humid subtropical climate characterized by hot summers and mild winters. Summers are typically hot and humid, with temperatures often reaching the mid-90s Fahrenheit. Winters are generally mild, with temperatures averaging around the mid-40s. The area receives an average annual rainfall of approximately 46 inches, with precipitation occurring throughout the year.

Hydrologically, Poynor is situated near the Jacks Fork River, a popular spot for water-based activities such as canoeing, kayaking, and fishing. The river is known for its crystal-clear waters, scenic landscapes, and abundant fish species, including smallmouth bass and catfish. Additionally, there are several smaller creeks and ponds scattered throughout the surrounding countryside, providing ample opportunities for fishing and birdwatching.

Outdoor enthusiasts visiting Poynor can explore the nearby Mark Twain National Forest, which offers a range of activities such as hiking, camping, and hunting. The forest boasts a diverse ecosystem with numerous trails leading to breathtaking vistas, waterfalls, and unique flora and fauna. With its favorable climate, diverse hydrology, and abundant outdoor recreation opportunities, Poynor is a destination that caters to nature lovers and adventure seekers alike.