7/30/2021 By Julie Ingwersen CHICAGO, July 30 (Reuters) - U.S. corn and soybean futures fell about 2% on Friday on technical selling and long liquidation at the end of the week and month, and on beneficial rains in portions of the Corn Belt, traders said. Wheat futures ended modestly lower but posted a gain for the month of July. Chicago Board of Trade December corn settled down 11-1/4 cents at $5.45-1/4 per bushel and November soybeans ended down 28-1/2 cents at $13.49-1/4 a bushel. CBOT September wheat fell 1-1/2 cents to finish at $7.03-3/4 a bushel. Rains fell Friday in portions of South Dakota, Minnesota and northern Iowa, and some forecasts indicated more showers ahead that could help U.S. crop prospects.