Traders assign the highest implied probability (32.5%) to a 33°C peak in Chengdu on August 8 because long-term climatological data place typical mid-August maximum temperatures between 30–34°C in the city’s subtropical monsoon climate, with recent model guidance from sources such as AccuWeather and EaseWeather converging near 31°C. Key variables include daytime cloud cover and scattered convective showers that can suppress highs by 1–2°C, urban heat-island effects that locally elevate readings, and steering patterns that determine whether drier, warmer air masses dominate. The broad distribution across 31–35°C outcomes reflects genuine short-term forecast uncertainty typical 48 hours ahead, with new model runs and official China Meteorological Administration updates expected to narrow the range before resolution.