Just as they opened, the CME Group corn, soybean and wheat markets closed lower Thursday. 

The Sep. corn futures closed 13 1/4 cents lower at $7.81 1/4, while the Dec. contract settled 11 3/4 cents lower at $7.76 1/4. The August soybean contract finished 38 1/2 cents lower $16.55 3/4, Nov.  futures closed 48 cents lower at $15.67. The Sep. wheat futures finished 19 1/4 cents lower at $8.84. Aug. soyoil futures settled $0.56 lower at $51.68. The Aug. soymeal futures finished $11.00 lower at $518.80. 
In the outside markets, the NYMEX crude oil is $0.55 per barrel higher, the dollar is lower and the Dow Jones Industrials are 211 points higher.