With weaker overnight trading, the CME Group soybean, wheat and corn markets will face lower follow-through trading Tuesday.

The Early Calls for the commodities on Tuesday, May 22, 2012, are lower. Corn is seen opening 6-8 cents lower, wheat 14-16 cents lower and soybeans 4-6 cents lower.

In overnight trading, the July corn futures contract traded 7 1/2 cents lower at $6.25 1/2 per bushel. July soybean futures traded 5 1/2 cents lower at $14.07 per bushel, and July wheat traded 16 3/4 cents lower at $6.87 1/4. For July soybean meal futures, the contract traded $1.50 per short ton lower at $415.00. July soybean oil futures traded $0.03 higher at $50.95.

The outside markets are unfavorable for Tuesday's grain trade. The real factors driving the calls will be the lower overnight markets.

Discuss the corn, soybean and wheat markets in Marketing Talk.