India, May 25 -- As the US marks Memorial Day 2026 today, travel plans, backyard cookouts and holiday shopping, many customers are checking whether major warehouse retailers like Costco are operating on Monday, May 25.

While most supermarkets and retail chains across the United States remain open during the federal holiday, Costco follows a different schedule every year for major national observances. Here's everything shoppers need to know about Costco's Memorial Day 2026 timings, closures and holiday shopping advice before heading to stores.

US Memorial Holiday 2026: Is Costco Supermarket Open Today [May 25] in the US?

No, Costco stores are closed across the United States on Memorial Day 2026.

The retailer traditionally shuts all wa...