Recent forecasts from the Korea Meteorological Administration and international models point to cloudy skies and scattered rain over Busan on August 16, limiting daytime heating and anchoring the highest temperature near 27–28°C. Persistent moisture from the North Pacific high combined with a passing frontal system has increased cloud cover and precipitation probabilities to 60–70 percent, reducing solar insolation relative to clearer summer conditions. This setup explains the market’s tight clustering around 26–28°C outcomes, as traders weigh official guidance of a 30°C ceiling against cooler guidance from ensemble runs showing overcast skies. Updated model runs and KMA briefings in the next 24 hours remain the key catalysts that could shift implied probabilities.