Mt. Airy Fall Festival October 13, 2018 Mt. Airy Carnival Grounds 1008 Twin Arch Rd. , Mount Airy, MD 21771 301-829-5466 10:00 AM to 4:00 PM Free VISIT WEBSITE Overview Map Arts and crafts festival, Good food and lots of entertainment. Children's section with lots of games and activities. Scarecrow making and pumpkin painting.