Costco Closed on July 4, 2020 by Rhonda February 4, 2021 274 7/4/20. Happy Independence Day! Costco will be closed today. 0 FacebookTwitterPinterestEmail previous post Nuwave Brio 6-Qt Air Fryer – Costco Sale! next post Cuisinart Custom Select Toaster-Costco Sale! You may also like La Boulangerie Blueberry Cheesecake Croissants at Costco! Costco Unadvertised Sales! JUNE 2023 Solo Stove Mesa Tabletop Fire Pit 3-Pack at... Costco – Memorial Day 2023 Happy Hop Shark Cave Adventure Inflatable Water Slide... Lemon Meringue Cheesecake from Costco’s Bakery!