Recent U.S. Drought Monitor data valid through September 22, 2026, show exceptional (D4) drought covering 1.8% of the contiguous United States, concentrated in portions of the Southern Plains, Lower Mississippi Valley, and Southeast where deficits have deepened amid the warmest June–August on record and below-normal precipitation. Authoritative monitoring by the National Drought Mitigation Center, NOAA, USDA, and NASA integrates precipitation, soil moisture, streamflow, and vegetation indicators to classify conditions on the D0–D4 scale, with D4 representing the most intense category tied to widespread agricultural losses, water shortages, and ecosystem stress. Short-term forecasts for late September favor continued hot, dry weather across much of the South, potentially sustaining or expanding D4 areas before the next map (data valid September 29) releases October 1, while any tropical moisture or frontal systems could trigger localized improvement. Traders should note that weekly map updates reflect the most recent seven-day period and can shift rapidly with new observations.