Fall is a fun time in Nebraska. There are apple events galore - big and small. If you are really motivated, head to Nebraska City for the Apple Jack Festival. Info here.
If you aren't into making the trek or can't take the crowds in Nebraska City, another great option (especially for young kids,) is Ditmar's Orchard. Located in Iowa, just past CB, it is a quick trip and is never too crowded. It has a great hay rack ride, picnic tables (pack a lunch or purchase from their deli) and a playground. Info here.
Stay tuned for October fun, pumpkin patches ABOUND!