Chicago Board of Trade (CBOT) grains futures closed higher Tuesday with soybean futures rising two percent on a mix of technical buying and forecasts for dry weather in the Midwest that could threaten late-season yield prospects.

Corn and wheat futures followed the higher trend.

The most active corn contract for December delivery rose 3.25 cents, or 0.91 percent, to 3.585 dollars per bushel. December wheat delivery rose 4.25 cents, or 0.97 percent, to 4.43 dollars per bushel. November soybeans added 19 cents, or 2 percent, to 9.685 dollars per bushel.

CBOT brokers estimate that funds have bought 6,000 contracts of corn, 9,000 contracts of soybeans, and 3,200 contracts of wheat.

In the outside markets, the Brent crude oil market is 1.23 dollars per barrel higher, the U.S. dollar is lower, and the Dow Jones Industrials are 221 points lower.

The U.S. Department of Agriculture on Tuesday announced that private U.S. exporters recently sold 136,000 tons of soybeans to China and 143,650 tons of corn to Mexico.