Costco – Memorial Day 2024 by Rhonda May 27, 2024 71 5/27/24. Costco will be closed on Monday, May 27, 2024, in observance of Memorial Day. We at Frugal Hotspot are extremely grateful for our brave military who have sacrificed their lives in service of our country. 0 FacebookTwitterPinterestEmail previous post KS Mixed Berry Cheesecake at Costco! next post Solar Escape Bucket Hat – Costco Sale! 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