Tomnolen, Mississippi is a small town located in the northern part of the state. The town experiences a humid subtropical climate with hot summers and mild winters. Summers are characterized by high temperatures that can reach the mid to upper 90s Fahrenheit, while winters are generally mild with temperatures ranging from the 40s to 60s Fahrenheit.

Tomnolen is surrounded by several bodies of water, including the Tallahatchie River and nearby creeks. These waterways provide opportunities for various outdoor activities such as fishing, canoeing, and kayaking. Fishing enthusiasts can expect to find a variety of freshwater fish species, including bass, catfish, and crappie.

In terms of hydrology constituents, Tomnolen's water supply primarily comes from underground wells. The town has a public water system that ensures residents have access to safe drinking water.

For outdoor enthusiasts, Tomnolen offers a range of recreational opportunities. The town is surrounded by picturesque natural landscapes, making it ideal for hiking, camping, and wildlife observation. Additionally, the nearby Tombigbee National Forest provides further opportunities for outdoor activities and exploration.