99 Cents Only Store is located at 20882 Mission Blvd, Hayward, CA. This business specializes in Shopping Centers. 99 Cents Only Store is open Mon, 8am-9pm; Tue, 8am-9pm; Wed, 8am-9pm; Thu, 8am-9pm; Fri, 8am-9pm; Sat, 8am-9pm; Sun, 8am-9pm and accepts Mastercard and Visa.