NOTE:
US markets including CBOT grains will be closed on Thursday.
Friday is the last trading day for CBOT December options.
The US Federal Reserve is scheduled to release the minutes of its Nov. 1-2 policy meeting at 1 p.m. CST (1900 GMT).
WHEAT - Down 5 to 7 cents per bushel Lower on technical selling and a stronger dollar index , which tends to make US goods less attractive on the world market.
Forecasts for much-needed rains in the Mississippi River Delta region add pressure, but traders continue to monitor dry conditions in the southern Plains.
CBOT December soft red winter wheat last down 6-3/4 cents at $4.00-1/2 per bushel; K.C. December hard red winter wheat down 4 cents at $4.12-1/2; MGEX December spring wheat down 1/4 cent at $5.26-3/4.
CORN - Down 3 to 4 cents per bushel Lower on technical selling and profit-taking following a four-session advance that lifted the December contract on Tuesday to $3.51-3/4, its highest since Nov. 9. Traders squaring positions ahead of the Thanksgiving holiday.
Firm US dollar and weaker trend in crude oil adds pressure.
Large open interest in puts and calls at the $3.50 strike may act as a magnet for prices ahead of CBOT December options expiration on Friday.
CBOT December corn last down 3-1/2 cents at $3.47-1/2 per bushel.
SOYBEANS - Down 7 to 9 cents per bushel Profit-taking and technical selling after the CBOT January contract notched a fresh four-month high at $10.33-3/4 a bushel in early moves.
Long liquidation expected after open interest in CBOT soybean futures rose by roughly 45,000 contracts in the previous two sessions.
Mostly favorable weather in Brazil's crop belt adds pressure.
Market underpinned by strong recent export demand.
Malaysian palm oil futures closed nearly 1 percent higher, posting their third straight session of gains, on the back of a weaker ringgit currency.
CBOT January soybeans last down 9 cents at $10.21 per bushel.