Forecast models from agencies including the China Meteorological Administration and international ensembles indicate a likely daily maximum of 31–32°C for Zhengzhou on August 9 under clear to partly cloudy skies and light northeasterly flow, supporting the tight clustering of trader probabilities around those thresholds. Diurnal heating under weak subsidence and low humidity will determine whether readings reach the upper end of that range, while minor timing differences in any late-day cloud cover or boundary-layer mixing introduce the observed uncertainty between 30°C and 32°C-plus outcomes. Historical August climatology places typical highs near 31–33°C, providing a baseline against which current runs show little deviation. Traders are monitoring the next 12–18-hour model updates and local station observations for any shifts in the thermal ridge or moisture advection that could alter peak readings before resolution.