Recent extreme heat across South Korea, including record-breaking readings near 42°C in early August, has elevated trader focus on the ongoing heatwave's persistence into August 8. Official KMA short-range forecasts and ensemble models indicate a daily maximum near 36–37°C at the Incheon station under persistent high pressure, light winds, and high humidity that limits nocturnal cooling while enhancing daytime sensible heat. Subtle steering patterns and any late coastal advection could trim or boost the peak by 1–2°C, producing the tight clustering of implied probabilities around 34–36°C. Updated KMA model runs and 48-hour guidance releases remain the key near-term catalysts.