Dyer, Tennessee is a small town located in Gibson County. The climate in Dyer is humid subtropical with hot summers and mild winters. The town is situated near the Obion River, which provides water for agricultural purposes. Hydrology constituents in the area include phosphorus, nitrogen, and sediment. Outdoor recreation opportunities in Dyer include fishing at the nearby Reelfoot Lake, known for its abundance of crappie, bass, and catfish. The lake also offers opportunities for boating and birdwatching, with bald eagles and waterfowl being common sights. Additionally, there are several parks and hiking trails in the area.