**Official observations from the National Weather Service and DFW-area stations recorded a daily maximum of 99°F on September 6, 2026, aligning precisely with the market’s near-certain 98–99°F outcome.** Persistent high pressure, southeasterly flow, and a multi-week drought kept skies clear and allowed strong daytime heating well above the 1991–2020 normal of roughly 92°F. Model guidance and heat advisories issued days earlier consistently projected afternoon peaks near 100°F, with minimal cloud cover or moisture to moderate temperatures. Official verification now confirms the reading fell squarely inside the 98–99°F bin; only an uncharacteristic late-day cooling surge, station-specific microclimate differences, or a revised preliminary report could have altered the result, none of which materialized.