The key factor in the market Monday was the forecast for wet and much colder weather later this week, with freezing temperatures extending from the Canadian Prairies well into the U.S. Midwest.
The forecast lifted corn prices but soybeans were mostly unchanged and canola futures slipped again.
The worry in the U.S. was more about the rain and the delay in the harvest than the frost.
The USDA said that as of Sunday, 15 percent of soybeans had been harvested, down from the five-year average of 36 percent.
In corn, 57 percent was considered mature versus the five-year average of 84 percent.
Ten percent of corn was harvested versus the average of 25 percent.
Canola was pressured by expectations of a large crop, farmer pricing of harvested crop and a slightly stronger Canadian dollar.
The market appeared unconcerned about recent and forecasted wet weather that could delay the harvest in Western Canada.
November canola fell $3.10 to end at $371.20 per tonne on a volume of 7,389 contracts. January dropped $3.60 to settle at $376.20 with a volume of 3,483 contracts.
At noon, the U.S. dollar was at 1.0757 Canadian. One loonie was worth 92.96 cents US.
