October 2026 in O'Fallon, Illinois brings 20 live events across the city, led by community (10), sports (4), family (3). Here's what's on.
Community (10)Sports (4)Family (3)Art (2)Festival (1)
All October 2026 Events
Frequently Asked Questions
What's happening in O'Fallon in October 2026?
There are 20 events in O'Fallon, Illinois in October 2026, including K & 1st/2nd Grade Basketball Begins at Katy Cavins Community Center, Junior Service Club of St. Clair County Girls' Night Out at O'Fallon City Hall, School's Out Day at Katy Cavins Community Center, Parks & Environment Committee at O'Fallon City Hall. Browse the full October 2026 calendar on VenuNite.
Are there free things to do in O'Fallon in October 2026?
No October 2026 events in O'Fallon are currently marked free. Events with an unknown price are not counted as free.
How do I find events in O'Fallon for a specific date in October 2026?
VenuNite lists every upcoming event in O'Fallon, Illinois with date filters. Use the date picker on this page to narrow October 2026 down to a single day or weekend.
