Williamson, Iowa is a small town situated in the northeastern part of the state. The climate in Williamson is characterized by four distinct seasons. Summers are warm with temperatures averaging in the upper 70s to low 80s Fahrenheit, while winters are cold with temperatures often dropping below freezing. The area receives a moderate amount of rainfall throughout the year, with precipitation being fairly evenly distributed.

Hydrologically, Williamson benefits from its proximity to the Mississippi River. The town is located just a few miles away from the river, providing opportunities for water-related activities such as boating, fishing, and kayaking. The river also acts as a source for the area's drinking water supply.

In terms of outdoor recreation, Williamson boasts a variety of opportunities for nature enthusiasts. The town is surrounded by beautiful forests and rolling hills, making it an ideal location for hiking, camping, and wildlife observation. Additionally, there are several nearby parks and nature preserves that offer trails for walking and biking. Overall, Williamson provides a picturesque setting for individuals seeking to connect with nature and enjoy the outdoors.