Corn futures are lower at midsession. Strength in wheat helped pull prices higher on the open, but when that rally fizzled corn followed. Weather forecasts for the central and western Corn Belt indicate harvest should pick up over the next few days, although rain in the eastern Corn Belt will continue to hamper harvest. December is 3 1/4 cents lower at $2.55 3/4 and March is 3 1/4 cents lower at $2.69 1/2.

Soybean futures are trading slightly lower at midday. Expectations of a near record soybean crop this fall and improved harvest conditions in parts of the Midwest are weighing on the market. Some position evening is expected today ahead of the Census crush report on Thursday and the USDA Grain Stocks report on Friday. November is 3/4 of a cent lower at $5.46 and January is 1 1/4 cents lower at $5.59 3/4.

Wheat futures are trading mixed at midday. After opening firm on follow-through technical buying from yesterday's rally, commercial selling has tempered gains and pushed some contracts lower. Choppy trade is likely to develop ahead of USDA's wheat production and stocks numbers due out Friday morning. CBOT Dec is 1/4 of a cent lower at $4.22 3/4, KCBT Dec is 1/2 cent higher at $4.80, and MGE Dec is 1 1/2 cents lower at $4.60.

Cattle futures are trading lower at midday. The market opened higher in light volume, but has turned slightly lower on technical selling. Futures are expected to remain range-bound until cash market prospects become clearer. Firming boxed beef prices and early ideas of firm cash trade this week was supportive yesterday. October is 28 cents lower at $90.88 and December is 38 cents lower at $89.90.

Lean hog futures are lower at midsession. Lower cash hog prices and yesterday's $1.90 drop in pork cutouts are weighing on the market. Hog supplies remain abundant and packers are running plants near capacity, which is expected to keep pork prices and cash markets on the defensive. October is 20 cents lower at $61.95 and December is 43 cents lower at $59.55.