Recent Korea Meteorological Administration forecasts project a 25°C minimum overnight low for Incheon on August 21 amid mostly cloudy skies and scattered afternoon showers, which reduce radiative cooling and anchor temperatures near seasonal norms. High humidity from ongoing summer conditions and moderate marine airflow further limit nocturnal drops, aligning ensemble model guidance with a 24–25°C range as the most probable outcome. Trader consensus, reflected in the 46.5% and 31.5% implied probabilities for these thresholds, incorporates the narrow window for sub-24°C readings absent stronger cold advection or clearer skies, while historical August baselines for the region rarely dip below 23°C under similar patterns. Updated short-range model runs and official briefings expected overnight will likely refine these probabilities ahead of resolution.