| Monday | 5–10 AM, 4–8 PM |
| Tuesday | 5–10 AM, 4–8 PM |
| Wednesday | 5–10 AM, 4–8 PM |
| Thursday | 5–10 AM, 4–8 PM |
| Friday | 5–10 AM, 4–8 PM |
| Saturday | 9–10 AM |
| Sunday | 9–10 AM |
Thunderbolt Strength and Conditioning is an independent strength studio in Oswego, IL. The studio is known for its community, hardcore vibe.
Data last verified: 2026-03-12
Own this studio? Email jess.park@sweatlocal.net to update your listing