**Clear skies and light easterly winds under a stable high-pressure pattern are driving forecasts for a daily maximum of 30–32°C in Zhengzhou on September 14.** Multiple model runs, including those reflected in international weather services, show strong daytime heating with minimal cloud cover and dew points in the mid-teens Celsius, allowing efficient solar radiation absorption at the surface. Zhengzhou’s location in the North China Plain favors this late-summer warmth when steering flows remain weak and subsidence suppresses mixing. Trader-implied probabilities cluster tightly around 30–32°C because small differences in afternoon boundary-layer mixing or exact timing of peak insolation can shift the observed high by 1–2°C. Official resolution will rely on China Meteorological Administration station data, with any late-model adjustments or localized urban heat effects representing the main sources of remaining uncertainty.