Costco is Closed on the 4th of July (2022) by Rhonda July 4, 2022 283 Happy Independence Day! Costco will be closed today, July 4, 2022. Even though Costco stores are closed today in observance of Independence Day, costco.com is open and is having a huge sale! Check out the deals at costco.com, while supplies last. Costco.com SALE! 0 FacebookTwitterPinterestEmail previous post Sunforce Solar String Lights – Costco Sale! next post Grandware 6-Drawer Wooden Orchard Rack at Costco! You may also like Costco Coupon Book OCTOBER 2023 Fall Food Sale at Pacific Northwest Costco Stores! Fruit and Cheese Tray at Costco! Acacia Grazing Board at Costco! Beautiful Lenox Holiday Florentine & Pearl Lit Figurines... White Ceramic Christmas Trees at Costco!