**Official National Weather Service observations confirm a maximum temperature of 101°F at Austin Bergstrom International Airport on September 7, 2026, eight degrees above the 1991–2020 normal high of 93°F.** This reading, taken at 3:58 PM CDT under clear skies with no measurable precipitation, aligns precisely with the 100–101°F outcome that dominates the market at 100% implied probability. Recent late-summer heat across central Texas, including multiple days above 100°F earlier in the month and season, created atmospheric conditions favoring strong daytime warming. Traders priced in near-certainty once preliminary data and model consensus pointed to this narrow band. The only realistic challenges would involve revisions to the official NWS summary (unlikely after validation) or use of a non-standard station for resolution, both of which remain improbable given standard meteorological practice.