**Forecast models from the China Meteorological Administration and international sources indicate minimum temperatures in Guangzhou on August 22 will most likely fall between 25–28°C, consistent with the market's leading outcomes at 27°C (40%), 28°C (30%), and 26°C (27.5%).** Persistent East Asian monsoon flow, elevated humidity above 80%, and scattered cloud cover or light rain are limiting nocturnal radiative cooling under subtropical conditions, keeping overnight lows near or slightly above the August climatological average of ~26°C. Recent model runs show broad agreement on this range, with only modest divergence tied to the exact timing and coverage of convective showers that can suppress daytime peaks while maintaining warmer nights. No significant cold advection, typhoon influence, or clear-sky radiative events are expected in the 24–48 hour window, supporting the tight clustering of implied probabilities around 26–28°C.