St. Francis Keller Lake in Kansas is a great location for fishing enthusiasts. It's known for its abundant catfish, largemouth bass, crappie, and bluegill. Visitors can enjoy camping, hiking, and picnicking at the lake's facilities. Fishing tips include using live bait and lures, and fishing near underwater structures and drop-offs. The best time of the year to visit is during the spring or fall, with temperatures ranging from 50-70 degrees Fahrenheit. However, summer can also be a great time to fish, with temperatures averaging around 80 degrees Fahrenheit.