Official National Weather Service observations recorded a daily maximum of 79°F at Austin Bergstrom on October 2, 2026, amid persistent cloud cover, heavy thunderstorms, and a tropical moisture plume that suppressed temperatures well below the 1991–2020 October average high near 87°F. Multiple forecast models and real-time reports converged on this outcome, with widespread rain and northerly flow limiting daytime heating and keeping readings in the upper 70s. Trader consensus at 99.9% for the 78–79°F bin reflects this verified data, though minor station-to-station differences or post-event revisions remain theoretically possible before final market resolution.