St. Aidan's Oktoberfest. 3:00-7:00 p.m. at 8531 Riverside Road. Live music from the Mount Vernon German Band, specialty sausages and beer, homemade treats, and silent auction. Kinderfest from 3:00-5:00 p.m. includes games, cake walk, face painting, and more. Rain or shine. Call (703) 360-4220 or visit http://www.staidansepiscopal.com.