The next Katy Market Day is September 21 from 9 a.m. to 3 p.m. right in downtown Katy near 5717 Second Street. The monthly street fair features over 100 vendors, food trucks, entertainment, free snow foam and inflatables for the kids. All antiques and boutique shops are scheduled to be open. New vendors may sign up in person at The Limited Edition Art and Antiques, 5717 Second,no online booth rental, only in person at The Limited Edition! For more information, go to Katymarketday.com or call 281-391-1993.