 Auto Accident Help Desk. Lower overnight in grains. September corn down 6, 396. December down 5, 409.75. September beans down 14.5, 1044. November down 15, 1050.25. September Chicago wheat 14.75. Lower 536. KC wheat September down 14, 553.75. Spring wheat September down 9, 588.5. This is the American Ag Network.