Costco: July 4, 2018 by Rhonda July 16, 2020 264 7/4/18. Happy 4th of July! Costco will be closed today. 0 FacebookTwitterPinterestEmail previous post Costco Sale: Cascade Mt.Tech Carbon Fiber Trekking Poles $24.99 next post Costco: Cuisinart Mandoline Slicer $19.99 You may also like LED Pre-lit Pop-up Snowman Family at Costco! White Decorative Holiday Deer at Costco! Caramel Apple Mini Cakes at Costco! Costco Coupon Book OCTOBER 2023 Fall Food Sale at Pacific Northwest Costco Stores! Fruit and Cheese Tray at Costco!