General Comments Markets had a firmer tone to open the session Sunday evening with soybeans again leading prices somewhat higher. The expected weekend rains were limited to North Dakota and western Minnesota with Iowa again being left high and dry and hot. Markets started to lose their edge after 9:30 and fund selling started to pressure soybeans at mid-morning. Corn and wheat traded 5-7 cents lower most of the session.Weather should become less of a market factor. It is almost the middle of September and rains from now forward are not going to help very many acres of corn and soybeans. What is there is there. The USDA production and WASDE updates will be released Thursday at 12:00pm EDT/11:00am CDT.U.S. financial markets were very str...