**Persistent cloud cover and high humidity from scattered thunderstorms are keeping Beijing's overnight radiative cooling limited on August 21, supporting minimum temperatures in the 23–24°C range.** Official forecasts from agencies such as the China Meteorological Administration and international models consistently project lows near 22–25°C under these late-summer monsoon-influenced conditions, where moisture and urban heat retention prevent sharper drops typical of clearer nights. Historical August averages hover around 21°C, but the current pattern of elevated dew points and limited clear-sky windows has shifted trader consensus toward the higher end of the distribution. With resolution imminent, updated model runs and real-time observations will determine whether the low settles at 24°C or edges to 23°C, aligning with the market's dominant implied probabilities.