Is Costco Open On Memorial Day 2025. While costco is not open on memorial day itself, their special costco deals for memorial day will be available to shop online during the entire sale. While costco is closed this memorial day, plenty of other stores will be open for business and you'll find a comprehensive list of them right here.

Store hours vary depending on the location, but costco is typically open until 6 p.m. While costco is closed this memorial day, plenty of other stores will be open for business and you’ll find a comprehensive list of them right here.