Lower in narrow, rangebound trade amid a lack of market-moving news.
CBOT November soybean and rough rice futures contracts expire at 12:01 p.m. CST (1801 GMT).
The latest U.S.D.A. report released Monday shows 85% of the state corn crop is now in the bins.
The most active wheat futures were up 0.2 percent at $4.30-1/2 a bushel, having closed up 0.6 percent on Friday. Futures underpinned by a decline in USA crop condition ratings and the fact that commodity funds already hold a large net short position in CBOT wheat futures.
The soybean harvest is nearing completion, while the corn harvest is still 17% points from being finished, behind its five-year average. That compares to 67% last week, and the harvest is now one week behind the five-year average after being nine days behind last week. The Brazilian weather forecast is wet with heavy rains, which are expected to cross the northern and central areas of the crop belt through early December.
CBOT January soybeans last traded down 3-1/4 cents at $9.83-3/4 per bushel.