**Trader consensus at 23°C reflects official Korea Meteorological Administration forecasts and numerical model runs showing a daytime maximum of 23–24°C for Incheon on October 9 under an eastward-shifting high-pressure system over the East Sea.** Clear to partly cloudy conditions, light to moderate westerly winds, and typical early-October insolation produced a peak consistent with regional climatology, with morning lows near 14°C rising steadily through the afternoon. Multiple sources, including high-resolution GFS guidance, converged on this narrow range with minimal spread. Because the date is nearing resolution and temperatures have already crested, only an unforecasted late surge or measurement revision could alter the outcome, scenarios considered highly improbable given current observations.