Costco Just Dropped $100 Off This Memorial Day Outdoor Cooking Must-Have

If your current gas grill is on its last summer — wonky igniter, rust spots, the side burner that hasn’t worked since 2022 — Costco just made the upgrade decision easy. The Memorial Day gas grill drop is live, and the headline number is $100 off the most-recommended propane grill at the warehouse.

Here’s exactly what’s on sale, what’s not, and the online-only trick most members miss.

• What: $100 off select major-brand propane gas grills at Costco
• When: Live now, runs through the first weekend of June
• Where: In-warehouse + Costco.com (price varies by warehouse)
• The trick: Costco.com sometimes has a deeper discount than in-store — and includes free shipping on most patio items
• Best move: Scan for .97 or .07 ending tags in the patio aisle (clearance signal)

What’s actually on sale

Costco rotates which exact grill model gets the headline Memorial Day discount, but the most consistently-discounted brand families are:

1. Char-Broil Performance Series (4-Burner, Cabinet Model)

• Stainless steel cooking grates, side burner, infrared rear burner on premium variants
• Typical Memorial Day price: $349–$449 (was $449–$549)
• Why it’s the value pick: Solid mid-tier grill at a price that doesn’t make you grimace

2. Weber Spirit II E-310 (3-Burner)

• The “buy once, use 10 years” pick
• Porcelain-enameled cast iron grates, GS4 grilling system, 10-year warranty
• Typical Memorial Day price: $499–$599 (was $599–$699)
• Why it’s the splurge pick: Weber’s reputation for longevity is earned — the Spirit II is the grill members swear by

3. Nexgrill 4-Burner Stainless Steel

• The Costco-exclusive workhorse
• 4 stainless burners + side burner, cast iron grates
• Typical Memorial Day price: $299–$379 (was $399–$479)
• Why it’s the budget pick: Costco’s exclusive Nexgrill SKU is the cheapest-per-burner gas grill they stock

4. Traeger Pro Series Pellet Grill (different product, often discounted simultaneously)

• Wood-pellet grill (technically not gas, but on Memorial Day deal)
• WiFire app, hopper holds 18 lbs of pellets
• Typical Memorial Day price: $599–$699 (was $699–$799)
• Why it’s worth knowing: If you’re considering switching from propane to pellet, Memorial Day is the cheapest entry point

The online-only trick

Here’s what members miss: Costco.com prices on patio items often beat in-store prices. Why? Online inventory ships from regional warehouses with different overhead — the buying team passes some of those savings into the online listing.

How to use it:

1. Find the model you want at your local warehouse first (check size, warranty, look at it in person)
2. Open the Costco app or Costco.com and search the same SKU
3. Compare prices — the online listing is sometimes $50–$100 cheaper, plus free shipping
4. If online is cheaper: order online, have it delivered to your driveway

The catch: in-store has live “manager markdown” power. If you spot a .88 ending tag on the floor model in the warehouse, that overrides the online price by a wide margin.

The .97 ending — the Memorial Day signal

Per the Costco pricing-code hack: tags ending in .97 mean manager-marked clearance. In the patio aisle around Memorial Day, these are the deepest-discounted grills — usually last-year’s model that the warehouse needs to clear before the new SKU hits in early summer.

The .97 grill move:

• Walk the patio aisle Saturday morning (May 23) at warehouse open
• Scan tag endings — anything .97 is a manager-clearance gift
• Premium-brand grills marked .97 have hit 40–60% off in the past — we’ve seen members snag a $999 Weber Genesis at $499.97

If you see .97 + a small asterisk on the top right of the tag, the model is being phased out and won’t restock. Buy immediately or grieve later.

The “with the grill” upsells worth grabbing

Costco’s patio aisle is built to make you walk out with more than just the grill. The accessories worth adding to the cart:

• Propane tank (~$50 for the 20-lb tank if you don’t already have one)
• Grill cover — Costco’s proprietary fitted covers run ~$30 and last way longer than the generic ones
• Stainless steel grilling tools set (~$25 for tongs + spatula + brush + fork)
• Meat thermometer (Inkbird wireless, ~$35) — the upgrade that makes the grill worth it

Total accessory bump: ~$140. Worth it if you’re starting from scratch.

What’s NOT discounted (don’t fall for the in-store-impulse trap)

Memorial Day at Costco also fills the entrance with:
– Outdoor sectionals (rarely deeply discounted in May; wait for August clearance)
– Pizza ovens (Ooni, etc.) — usually full price in May
– Outdoor heaters (out of season — full price)
– Smoker boxes / accessory upgrades for grills not on sale

If you came for the gas grill, get the gas grill. The patio aisle is engineered to make you walk out with $1,500 in things you didn’t plan to buy.

Buy vs Wait — the decision tree

Buy now if:
– Your current grill is broken or unsafe
– You’re hosting Memorial Day weekend
– You spot a .97 ending on a model you’d want at full price

Wait if:
– Your current grill works fine — Black Friday and August clearance often beat Memorial Day on the high-end models
– You want the newest 2026 model (the new SKUs typically hit in mid-June)

Timing — when to actually shop

Day	Patio aisle status
Sat May 17	Light crowd — best for browsing
Wed May 21	Medium — restocked, deals locked
Fri May 22	Heavy crowd, but full inventory
Sat May 23	War zone — best for .97 clearance picks if you’re patient
Sun May 24	Avoid — last-minute shoppers wipe out inventory
Mon May 25	Costco closed for Memorial Day
Sat May 30	Restocked, post-holiday markdowns possible

The first weekend of June often has DEEPER markdowns than Memorial Day weekend itself — the buying team marks down whatever didn’t sell.

The 10-second checklist before you load it in your car

• [ ] Does the model have a side burner (huge for one-pan cooking)?
• [ ] Stainless steel or porcelain-enameled grates?
• [ ] Warranty length (Weber = 10yr; Char-Broil = 5yr; Nexgrill = 5yr)
• [ ] BTU rating (40,000–50,000 = good; 60,000+ = overkill for 2-4 person cooking)
• [ ] Propane tank included?
• [ ] Assembly required? (Most yes — budget 2-3 hours)
• [ ] Costco’s flatbed assembly service available? (Some warehouses, $99-149)

Bottom line

Costco’s Memorial Day gas grill drop is real and the savings are legit, but the deepest discounts are on last-year’s model with .97 endings, asterisks, and “won’t restock” signals. If you’re flexible on which exact model, the patio aisle Saturday morning May 23 is the score.

If you want a specific brand-and-burner config, the Costco.com listing is your safer bet — and sometimes cheaper than the warehouse.

Either way: don’t pay full price for a grill in the next two weeks. Costco engineered the discount around your Memorial Day timeline. Use it.

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Related on RetailShout:
– Memorial Day BBQ at Costco: 25 Items to Lock In Before May 22
– Top 50 Costco Online .97 Markdown Deals This Week
– What’s Trending at Costco This Week