Recent forecast model runs from agencies including the Korea Meteorological Administration and global ensembles indicate overnight minimum temperatures in Incheon near 25–26°C on August 27, driven by persistent high humidity near 85–90%, light westerly winds, and extensive cloud cover that limits radiative cooling. These conditions suppress the typical diurnal drop seen in clearer late-summer nights, keeping the lowest reading tightly clustered around the market’s leading outcomes. Slight model spread in timing of any partial clearing or wind shifts creates the narrow edge for 26°C over 25°C, with lower probabilities assigned to 24°C or below reflecting the low likelihood of stronger cooling under current stable high-pressure influence. Updated model guidance and local observations through the evening will refine these probabilities ahead of market resolution.