Leighton is a small town located in Mahaska County, Iowa. It experiences a humid continental climate characterized by four distinct seasons. Summers are warm and humid with temperatures ranging from the mid-80s to low 90s Fahrenheit. Winters are cold and snowy, with temperatures dropping below freezing and occasional snowstorms.

The hydrology constituents in Leighton are primarily influenced by the South Skunk River, which flows nearby. The river provides a water source for the town and supports various aquatic species.

Leighton offers a range of outdoor recreational opportunities. The South Skunk River provides opportunities for fishing, boating, and kayaking. Anglers can expect to catch species such as catfish, bass, and panfish. Additionally, the town is surrounded by beautiful natural landscapes, making it a great destination for hiking, bird watching, and wildlife photography. Nearby Lake Keomah State Park offers additional outdoor activities including camping, swimming, and picnicking.

Overall, Leighton provides a pleasant climate for outdoor enthusiasts to engage in various recreational activities while enjoying the natural beauty of the area.