Official Hong Kong Observatory measurements recorded a minimum of 28°C overnight into August 16 under mainly cloudy skies with scattered showers, aligning with seasonal monsoon flow that limited radiative cooling. This outcome reflects the typical August climatology of 26–28°C lows in the region, where high humidity and cloud cover prevent sharper drops. Trader consensus at near-100% for 28°C draws from real-time alignment between forecast guidance and post-event station data, with the wisdom of crowds reinforced by capital at risk. A realistic challenge would require an official data revision or measurement discrepancy at the headquarters station, though such shifts remain rare given established verification protocols.