**Trader sentiment for Chongqing's August 22 minimum temperature clusters tightly around 25–27°C because official and ensemble forecasts converge on overnight lows in that narrow band amid a stable, humid subtropical pattern.** Persistent cloud cover and scattered thundershowers—driven by monsoon moisture and weak steering flow—limit radiational cooling after sunset, keeping dew points elevated near 23–26°C and preventing sharper drops. Light winds (generally under 10 km/h) and high relative humidity (often 70–85% overnight) further suppress temperature falls, consistent with recent nights where minima have hovered at 26–28°C. Forecasts from sources including Chongqing Meteorological Observatory, NMC, and international models show daytime highs of 34–38°C followed by lows of 26–28°C for the 22nd, with minor variations tied to exact timing and coverage of any evening convection. The near-even split among 25°C, 26°C, and 27°C outcomes reflects small differences in how models resolve nocturnal boundary-layer mixing and localized rain-cooled pockets rather than any major synoptic shift. No significant frontal passage or drier air mass is expected before the period closes, so the market-implied probabilities align closely with the consensus range from authoritative numerical guidance.