According to an Aldi spokesperson, many Aldi stores will open at their normal time (which varies by location) on Memorial Day, but will close early in observance of the holiday at 6 p.m. So, yes, Aldi will be open on Monday, May 26.

With Memorial Day weekend coming to a close, it's easy to forget that Monday is a national holiday and not just the beginning of a new work week. And no matter how long that holiday has been recognized,