Forecast models from the China Meteorological Administration and international agencies indicate a high near 30°C in Zhengzhou on August 20, with thundery showers and persistent cloud cover expected to suppress peak heating through reduced solar insolation. Light northeasterly winds and elevated humidity typical of late-summer monsoon patterns further limit daytime warming, keeping values close to seasonal baselines around 30–31°C. The tight spread among 30°C, 31°C, and 32°C+ outcomes reflects uncertainty in shower timing and any late-day clearing that could allow brief additional warming. Updated model runs overnight and morning observations will clarify whether convection holds temperatures at or below 30°C.