Costco Hours: 4th of July by Rhonda July 24, 2020 431 Happy 4th of July! Costco will be closed today. 0 FacebookTwitterPinterestEmail previous post Costco Coupon Book: July 10, 2014 – August 3, 2014. Prices Listed. next post Costco Sale – iRobot Roomba 595 Pet Series Vacuum 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