Ideal weather for general aviation and ultralights exist throughout the year. Because of the abundance of good flying weather at Illinois Valley Airport, it can often be used as a alternate when nearby airports are fogged in.
Illinois Valley Airport is the site of many summer activities. The annual air show in September is a popular event with residents and visitors. The traditional 10K Moon Tree Run is held in June. Frequent skydiving meets are held throughout the season and tandem jumps are available for adventurous beginners.
