WHEAT - Down 5 to 8 cents per bushel
Rains in US Plains ahead of seeding of winter crop weighing on prices, as well as ample global supply base that is dampening overseas demand for US exports.
CBOT September soft red winter wheat last traded down 6-1/4 cents at $4.34-3/4 per bushel; K.C. September hard red winter wheat was off 5-3/4 cents at $4.31 while MGEX September spring wheat dropped 7 cents to $6.63.
CORN - Down 3 to 6 cents per bushel
Corn prices under pressure from improving crop ratings and bigger than expected government harvest forecast issued last week. Forecasts for good weather for crop development add further pressure.
CBOT December corn last traded down 4-1/2 cents at $3.71-3/4 per bushel.
SOYBEANS - Down 4 to 7 cents per bushel
Outlook for rain in US Midwest weighing on soybean futures as much of the crop is in key phase of development. Benchmark CBOT November soybean futures contract found support near Monday's low during overnight trading.
The CBOT reported 17 soybean deliveries, 62 soymeal deliveries and 101 soyoil deliveries against August futures.
CBOT November soybeans last traded down 6 cents at $9.32-1/4 a bushel.