O'Fallon, MO Swimming Pools: Public Swim Times & Pool Guide
Updated Nov 1, 2026 · from official pool websites.
1 year-round public pool listed in O'Fallon, plus 1 seasonal.
Year-round pools in O'Fallon (1)
- O'Fallon Missouri YMCA · Year-round · YMCA (fees or day pass may apply) · Times: see official schedule · Temp not published
Seasonal pools in O'Fallon (1, not in year-round counts)
Outdoor or summer-only pools. Check the operator for opening dates.
- Alligator's Creek Aquatic Center · Outdoor · Seasonal · Times: see official schedule · Temp not published