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The Sept. 8 Drought Monitor showed 81.1% of the U.S. in abnormal dryness or drought, with 25% of corn acres and 27% of soybean acres in D1-D4 drought.
Heat 10 to 15 degrees above normal and a lack of rain expanded drought across parts of the lower Midwest, while the northern Plains received heavy rain.
Expanding drought over key corn and soybean acres raises yield risk during grain fill, supporting corn and soybean prices.
profarmer.comSpencer LangfordSep 10, 2026After 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 1,079 past bullish weather events, SOY moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% 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.
Drought Monitor shows 25% of US corn acres in drought with a lower Midwest heat wave, implying yield risk heading into the move.
