Recent forecasts from multiple models indicate a high near 24–26°C in Incheon on September 25, driven by increasing cloud cover, southeasterly flow, and a 50–80% chance of afternoon showers that limit afternoon heating. These conditions follow several days of clearer, warmer weather near 28–29°C, with the expected moisture influx and reduced insolation creating the tight clustering of market-implied odds around the middle outcomes. Historical late-September averages near 23–25°C provide baseline context, while minor model differences in timing of precipitation and wind shifts account for the spread across 23–27°C. Updated runs from the Korea Meteorological Administration and global ensembles over the next 48 hours will likely narrow the range before resolution.