Recent Korea Meteorological Administration forecasts indicate a maximum of 33°C for Incheon on August 19 under lingering high pressure, yet persistent cloud cover, scattered showers, and elevated humidity are expected to limit afternoon peaks. These conditions explain why traders assign the highest implied probabilities to 29–30°C outcomes, reflecting model consensus on moderated insolation and potential evaporative cooling from light precipitation. Historical August baselines for the region average 31–32°C highs, but the current steering pattern favoring onshore flow adds uncertainty that could shift readings lower if convection strengthens. Updated short-range model runs and official briefings in the next 12–24 hours will likely refine these probabilities ahead of market resolution.