Recent forecasts from the Korea Meteorological Administration indicate minimum temperatures in the Seoul-Incheon area on October 17 will likely fall in the 8–16°C range, with model consensus centering near 14–15°C under mostly cloudy skies and light easterly winds. These conditions limit overnight radiative cooling compared to clearer scenarios, keeping the daily low above seasonal averages while the large diurnal swing (daytime highs near 23–25°C) reflects residual warm advection ahead of a frontal system. Uncertainty stems from variable cloud cover and any light showers that could suppress the minimum by 1–2°C, or clearer breaks allowing greater cooling; traders appear to weigh these factors against historical October lows near 12°C. Updated KMA guidance and ensemble runs through the weekend will refine the exact threshold before resolution.