Recent short-range forecasts from the China Meteorological Administration and global models indicate Beijing’s daily maximum on August 20 will reach 31–33 °C under late-summer conditions of moderate humidity, light southerly flow, and variable cloud cover with possible scattered showers. Ensemble spreads and minor model disagreements on cloud timing and shower timing create the observed market clustering, with 32 °C holding the highest implied probability. Official observations confirming this peak would align with climatological August averages near 30–31 °C. A sudden increase in convective rainfall or thicker cloud cover could suppress the high below 32 °C, while unexpected clearing and stronger insolation might push readings to 33 °C or above.