Costco Closed on Labor Day 2020 by Rhonda January 30, 2021 261 9/7/20. Costco will be closed on Monday, September 7, 2020, in observance of Labor Day. 0 FacebookTwitterPinterestEmail previous post Costco Sale – Life Comfort The Ultimate Throw next post Costco Sale: Gibson Sierra 6-Piece Bowl Set You may also like Miracle-Gro Organic Choice Raised Bed and In-Ground Soil... over and back coffee mugs at Costco! Feit Electric Rechargeable LED Tripod Work Light at... Steel Plant Caddy Set at Costco! Costco Business Center Coupon Book APRIL 2023 Just Bare Chicken Breast Fillets at Costco! |...