Current atmospheric conditions and forecast models from sources including the China Meteorological Administration indicate a stable autumn high of 23°C for Chengdu on October 11, driven by light northeasterly winds, mostly cloudy skies, and minimal precipitation risk that limit daytime heating. Multiple numerical weather prediction runs converge on this value, aligning with seasonal baselines around 22–24°C for mid-October in the Sichuan Basin and supporting the market’s near-certain consensus. Only an abrupt late-day shift in cloud cover, localized wind patterns, or an official measurement revision from a primary station could realistically alter the recorded maximum.