Yes, Planet Fitness typically opens on the 4th of July; however, hours may vary by location. Many gyms often have adjusted hours on holidays. It's a good idea to check with your specific Planet Fitness location for their holiday schedule. This can usually be done by visiting their website or calling the gym directly.
If you're planning to visit on Independence Day, be sure to check if there are any special events or promotions happening as well. Enjoy your workout!