**Persistent high humidity, widespread cloud cover, and scattered thunderstorms are keeping overnight radiative cooling modest in Shenzhen, producing trader consensus around a 26–27°C low for August 29.** Multiple forecast sources converge on nighttime minima near 26°C (roughly 79°F), with daytime highs of 30–33°C under partly cloudy skies and 60–70% storm chances. Light southwesterly winds and dew points near 26–27°C further suppress temperature drops by limiting clear-sky heat loss. The tight clustering of implied probabilities (25°C at 41%, 26°C at 41.5%, 27°C at 45.5%) mirrors typical ensemble spread in short-range models for humid subtropical environments, where small differences in precipitation timing or cloud thickness can shift the recorded minimum by 1°C. Higher outcomes (28°C+) or much lower ones (≤24°C) carry lower market weight because current conditions lack strong frontal passages or clear skies that would produce extremes. Updated model runs and official observations through the evening of August 28 will likely be the next key inputs for traders.