The market's overwhelming consensus on a 24°C high for Seoul (Incheon) on September 13 reflects real-time observational data and forecast model agreement from the Korea Meteorological Administration and global ensembles such as GFS. Current conditions feature overcast skies, light westerly winds, and temperatures climbing steadily toward a peak near that threshold during afternoon hours, consistent with seasonal norms for mid-September in the region. Official station readings at Incheon International Airport and nearby sites align closely with this value, leaving little room for deviation. Realistic challenges could include unexpected clearing that allows brief additional warming or measurement timing differences at the precise reporting station, though model consensus and ongoing observations make such shifts unlikely before resolution.