Midwest Rain Threatens to Slow Down Harvest Fieldwork

The Midwest is bracing for widespread rain that could slow down the harvest fieldwork. On September 17, 2026, corn and wheat futures closed lower while soybeans traded nearly flat. Producers, grain merchants, and commodity markets are watching the weather because 2 to 3 inches of rain could fall across many fields from the Dakotas through Ohio between Friday and Monday.

The timing is crucial for U.S. agriculture as fresh supplies start reaching the market while traders assess national corn and soybean yields, export demand, and the potential scale of seasonal harvest pressure. Weather forecasts have become a central market variable heading into the weekend.

Corn took the brunt of selling pressure during Thursday's session, with prices dropping more than 0.75%. December corn fell 3.75 cents to $5.3050 per bushel, while March declined 4.25 cents to $5.4450. Late buying moderated the losses but did not reverse the session.

Soybeans were steadier, with January futures slipping only 0.25 cent to $13.37 per bushel, while March gained half a cent to $13.4575. The soybean complex diverged, with December soybean meal gaining more than 1.5% and December soybean oil losing about 0.75%. Soybean exports offered firmer fundamental support, reaching 62.5 million bushels.