Most farmers in Stark County, Illinois, had finished harvest before several days of rain arrived. A local farmer reported a generally good year for yields, with corn down about 10% and soybeans slightly better than last year.
The reported lower corn yield modestly tightens local corn availability and is mildly supportive for corn prices; better soybean yields may add supply and weigh slightly on soybeans. The report is localized and does not establish a broader production change.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
After 363 past bearish weather events, Soybeans moved a median -0.6% over 5 sessions (42% higher; middle half -2.5% to +1.1%), and -0.2% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.