Recent U.S. Drought Monitor data valid September 29, 2026, show exceptional (D4) drought persisting or expanding in parts of Texas, Oklahoma, Arkansas, and the Lower Mississippi Valley amid prolonged heat and rainfall deficits, while the High Plains and West saw localized improvements from recent precipitation. The National Drought Mitigation Center and NOAA note that remnants of Hurricane Polo are delivering heavy rain across the southern tier through early October, potentially easing D4 intensity in affected states but raising flooding risks that could influence soil moisture readings. The Climate Prediction Center’s 6–10-day outlook favors above-normal precipitation from southern Texas into the Southeast, a key variable for the USDM update covering the week of October 6. Traders monitor these short-term model shifts and official Thursday releases, as D4 thresholds depend on integrated precipitation, streamflow, and vegetation indices compared to historical baselines.