Official observations from the National Weather Service at Houston Intercontinental Airport recorded a daily maximum of 92°F on September 26, 2026, placing the high squarely in the 90–91°F bin that now carries 100% market-implied probability. This outcome aligns with late-September climatology, where the 1991–2020 normal high is 88°F, and reflects a modest departure from average under clear to partly cloudy skies with light easterly flow. Model consensus and surface analyses showed no significant warm-air advection or subsidence strengthening that would push readings into the mid-90s. The near-certain market pricing rests on verified station data rather than forecasts. Only a post-event quality-control revision, station relocation, or change in the market’s official data source could realistically alter the result.