Current forecasts from the Korea Meteorological Administration and international models indicate Seoul and Incheon highs on August 12 will likely reach 32–33°C under typical late-summer conditions, with high humidity amplifying the heat index near 35°C. This positioning reflects a dominant high-pressure ridge with limited cloud cover and weak steering flows, allowing strong solar heating while moderating extreme peaks. The tight 30% probabilities on 32°C and 33°C capture small uncertainties in afternoon convection timing and urban heat-island effects versus slightly cooler coastal influences at Incheon. New model runs and official updates in the next 24–48 hours will refine maximum-temperature thresholds for market resolution.