Costco: July 4, 2018 by Rhonda July 16, 2020 621 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 Costco Weekend Update: April 25-27, 2025 Costco Weekend Update: April 18-20, 2025 Kirkland Signature Baby Wipes – Costco Sale! Strawberry Streusel Cheesecake at Costco! Yankee Candle Car Jar Ultimate Air Fresheners –... Costco Coupon Book APRIL 2025