By Scout Nelson
The University of Nebraska–Lincoln Hybrid-Maize crop model released updated corn yield forecasts on August 26 for 43 locations across the U.S. Corn Belt. The analysis shows a mixed outlook, with irrigated corn expected to perform steadily while rainfed yields show more regional variability.
Over the past three weeks, warmer-than-average nighttime temperatures have prevailed across the Corn Belt. With many nights exceeding 70°F, crop respiration increased, potentially shortening the grain filling period and lowering yield potential. Meanwhile, rainfall was near or below average for most sites, although parts of Nebraska and Minnesota received higher-than-average precipitation.
Across the southern Corn Belt, including Kansas, Missouri, and southern Illinois, corn has already reached maturity. Most of the central region has reached the dent stage, while a few northern and eastern locations remain at the dough stage.
In Nebraska, irrigated corn yields are projected to be near average at most sites. Half of the locations show a greater than 75% probability of achieving near-average results. Kansas irrigated corn yields show stronger variation, with north-central and eastern areas likely to exceed average yields, while the southwestern region faces below-average outcomes. Overall, the 2025 irrigated corn outlook mirrors the 2024 season.
Rainfed corn forecasts are more favorable. Eleven sites in Nebraska, Kansas, Missouri, and northern Minnesota indicate a high probability of above-average yields. July and early August rains continue to support positive dryland outcomes in Nebraska despite recent drier conditions. Nineteen sites, mostly in Iowa, Illinois, and Indiana, are forecasted to produce near-average yields. However, three locations in southwestern Nebraska, eastern Illinois, and northwestern Ohio are expected to see below-average results.
When compared with 2024, Kansas and parts of Nebraska show more optimism, while Illinois faces a less favorable forecast. Other states are expected to remain consistent with last year’s outcomes.
Photo Credit:gettyimages-dszc
Categories: Minnesota, Crops, Corn, Weather