Current forecasts from the Hong Kong Observatory and global models point to an overnight minimum near 27°C on August 22, driven by persistent southwesterly maritime flow and elevated humidity that restricts nocturnal radiative cooling. Scattered showers and thunderstorms early in the period could enhance localized convective cooling and nudge readings toward 26°C, supporting that outcome’s elevated market-implied probability alongside 27°C. Climatological baselines for August cluster between 26–28°C, with the seasonal outlook for normal-to-above-normal temperatures providing little deviation from this range. Updated model runs and the next official briefing remain the key near-term catalysts that could shift implied odds if wind patterns strengthen or convection intensifies.