Intown Concord’s Ultimate 3-Day Summer Festival is Back! The 48th Annual Market Days Festival is returning to downtown Concord, NH on June 23-25, 2022. This FREE, 3-day street festival will be held right on Main Street and feature shopping, food trucks, family-friendly activities, local artisans, and live entertainment each day from 10 am – 10pm, highlighted by a huge free outdoor concert Saturday, June 25^th featuring Vertical Horizon.