As of August 18, 2026, the AIFS ENS indicates that the core Corn Belt will experience above-normal temperatures over the next five days, with average daytime highs near 82°F and overnight lows around 62°F. Precipitation looks scattered to widespread light, averaging roughly 0.41 inches in days 1–5 (fairly uniform amounts across the core Corn Belt), 0.19 inches in days 6–10, and 0.35 inches in days 11–15. Corn is generally in the milk-to-dent stages (R3–R5) and soybeans are in pod-fill to full-seed stages (R4–R6), making both crops sensitive to heat stress and moisture deficits during grain fill. The combination of persistent heat and the uneven rainfall distribution raises the risk of increased crop stress, particularly in the drier western and southern portions of the belt, and may begin to limit yield potential if the pattern persists.