Costco Hours: 4th of July by Rhonda July 21, 2020 409 Happy 4th of July! Costco will be closed today. 0 FacebookTwitterPinterestEmail previous post Costco Sale: Ace Bayou Sleep-N-Go Portable Folding Mattress next post Costco Sale: Pyrex 5-Piece Glass Bakeware Set $9.99 You may also like NEW Orange Dreamsicle Cheesecake at Costco!! Costco Coupon Book AUGUST 2024 Costco In-Warehouse Hot Buys Sale – JULY 2024! Costco Business Center Coupon Book JULY / AUGUST... Costco Sale: Kirkland Signature Hexagon Dog Bed Costco Member Savings Days 7/15/24 – 7/19/24