Recent forecasts from the China Meteorological Administration and global models cluster Zhengzhou’s August 21 maximum near 30–32 °C under late-summer monsoon flow, with scattered showers and increasing cloud cover expected to cap afternoon heating. This keeps the market-implied odds tightly split between 31 °C (48 %) and 32 °C or higher (39.5 %), reflecting modest uncertainty in convective timing and boundary-layer moisture. Historical August averages of 32–33 °C provide context, yet a slight seasonal decline and potential for earlier rain onset tilt probabilities toward the lower side of that range. Traders monitor updated CMA guidance and regional model runs through the morning for any shifts in expected peak solar insolation or storm coverage that could resolve the outcome.