Yes. According to Executive Order 2020-59:
Effective on April 26, 2020 at 11:59 pm: (a) Any individual able to medically tolerate a face covering must wear a covering over his or her nose and mouth—such as a homemade mask, scarf, bandana, or handkerchief—when in any enclosed public space.
Remember, this only applies when in any enclosed public space. An enclosed public space includes grocery stores, hospitals, restaurants, etc.