Grain and soy prices firmed overnight as the leading weather models indicated the return of above-normal temperatures and dry conditions to portions of the Midwest during the first two weeks of August. Although crop maturity is generally eight-10 days ahead of average, heat and dryness during early August can still have a negative impact, especially on soybeans. November soybeans traded up about 6 cents overnight with corn and wheat up close to 2 cents. Overnight trade did not prepare the market for what was to come during the day session, though. Early this morning, Bloomberg reported that U.S. and Chinese officials were quietly talking about a restart to trade discussions in an effort to end the trade conflict between the two countries...