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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 warehouse locations during major federal holidays, including Memorial Day. This includes Costco warehouses, pharmacies, gas stations and food courts in most locations.
Customers planning to shop at Costco on Monday, May 25, will need to wait until stores reopen on Tuesday.
What Time Does Costco Supermarket Open Today in the US?
Since Costco stores remain closed nationwide for Memorial Day, warehouse locations will not open on May 25.
Normal business operations are expected to resume on Tuesday following standard weekday schedules, which may vary slightly by location.
What Time Does Costco Supermarket Close Today in the US?
Costco locations are not operating on Memorial Day 2026, meaning there are no opening or closing hours for Monday, May 25.
Customers are advised to check local schedules online before visiting once stores reopen after the holiday.
Are Costco Stores Closed Today in the US [May 25]?
Yes, all major Costco warehouse stores are closed across the US for Memorial Day 2026. Unlike many grocery chains and retail outlets that remain operational during the holiday, Costco continues its long-standing policy of closing stores on key national holidays such as:
- Memorial Day
- Thanksgiving
- Christmas Day
- Independence Day
- Labor Day
The company usually announces holiday schedules in advance through its official website.
US Memorial Holiday 2026: Costco Full Schedule Today in the US [May 25]
Costco is observing Memorial Day 2026 with a full nationwide closure across most of its services and warehouse operations on Monday, May 25. Here's Costco's expected holiday schedule for Memorial Day 2026:
- Costco Warehouses: Closed
- Costco Gas Stations: Mostly Closed
- Costco Pharmacies: Closed
- Costco Optical Centers: Closed
- Costco Tire Service Centers: Closed
- Costco Food Courts: Closed
- Costco Business Centers: Closed in most locations
- Costco Online Shopping: Available 24/7
- Home Deliveries: Limited or delayed depending on region
Costco is one of the few major warehouse retailers in the United States that completely shuts operations during major federal holidays, including Memorial Day, Thanksgiving and Christmas Day.
Why Are Costco Hours Different Today [May 25]?
Costco closes stores on Memorial Day as part of its company holiday policy and to allow employees time off during major national observances.
The retailer follows a smaller holiday operating calendar compared to several competitors, many of which continue normal operations during federal holidays to handle increased shopping demand.
Memorial Day is also observed in the United States to honour military personnel who died while serving in the armed forces.
US Memorial Holiday 2026: What Are the Busiest Times to Shop at Costco Supermarket?
Costco stores usually experience the heaviest customer rush during holiday weekends and immediately after reopening following Memorial Day closures.
The busiest shopping hours are typically:
- 10 a.m. to 1 p.m. - Morning rush as stores open
- 12 p.m. to 4 p.m. - Peak afternoon crowd hours
- 5 p.m. to 7 p.m. - Evening rush after work hours
Weekends, especially Saturdays and Sundays, also tend to witness longer checkout lines and crowded parking areas.
How to Check Your Nearest Costco Store Timings?
Customers can verify local Costco schedules through:
- Costco official website
- Costco mobile app
- Google Maps business listings
- Customer support helplines
Store timings may vary depending on the region and local holiday policies.
US Memorial Holiday 2026: Tips for Shopping in the Costco Store
Customers planning to shop at Costco after the Memorial Day closure can avoid long lines and crowded aisles by planning. Here are some useful tips for a smoother Costco shopping experience:
- Visit stores early in the morning to avoid peak crowds
- Avoid weekends and late afternoon rush hours
- Prepare a shopping list before entering the warehouse
- Use the Costco mobile app to check deals and product availability
- Keep your membership card ready for faster entry and checkout
- Use self-checkout counters where available to save time
- Check fuel station timings separately because they may differ by location
- Order bulky items online if in-store demand remains high after the holiday