July in McHenry County can feel a little overwhelming in the best possible way. Between parades, festivals, lakefront concerts, and fireworks shows, there is no shortage of ways to celebrate summer and the Fourth of July. The challenge isn’t finding something to do, the challenge is deciding which tradition, town, or event to take in on any given night. From long-running community festivals that stretch over multiple days to simple, family-friendly fireworks at the park or beach, each town offers its own take on summer celebration. This guide highlights six family-fun events to help narrow the choices and make planning a little easier.
Crystal Lake
Lakeside Festival returns July 2–5 at the Dole grounds, combining carnival rides, live music, food vendors, and family activities with one of the county’s biggest fireworks displays. Fireworks are Sunday, July 5 over the lake at Main Beach. It’s a longtime community tradition with a true hometown festival atmosphere. https://www.thedole.org/the-fest
Lake in the Hills
Lake in the Hills hosts Rockin’ Rotary Ribfest July 9-12 at Sunset Park, combining award-winning BBQ, live music, and carnival rides. The festival draws big crowds from across the area and has a lively, family-friendly atmosphere. https://rockinrotaryribfest.com
Woodstock
4th of July Fireworks in Woodstock will light up the skies over Emricson Park on July 4 beginning at dusk. Visitors can enjoy concessions, open green space, and a relaxed community atmosphere while watching the show. Woodstock’s historic square and nearby restaurants also make it easy to turn the evening into a full night out before fireworks begin. https://business.woodstockilchamber.com/events/details/4th-of-july-fireworks-in-woodstock-07-04-2026-14962
Algonquin
Algonquin hosts its Founders’ Days festival July 24-27, featuring carnival rides, live entertainment, food vendors, and fireworks at Spella Park. While later in the month, it delivers one of the county’s biggest summer celebrations. The event also includes a parade and downtown activities, creating a full weekend festival experience anchored by its fireworks show. https://chicagoevents.com/event/algonquin-fest/
McHenry
McHenry celebrates with Fiesta Days July 9-19, a multi-day festival featuring concerts, parades, a carnival (July 10-12), food vendors, and fireworks over Petersen Park. The lakefront setting adds to the energy, especially during evening events. It’s one of the largest summer festivals in the county and blends small-town tradition with a high-energy celebration. https://mchenryfiestadays.com