Costco Hours July 4th 2024. If you're planning to stock up for a holiday barbecue or just need some groceries, here's what you need to know about costco's 4th of july hours. Store hours vary depending on the location, but costco is typically open until 8:30 p.m.
The store’s official website includes. According to costco’s website, warehouses will be closed on thursday, july 4.