Recent forecast models for Seoul and Incheon show typical midsummer conditions with overnight lows near 23–26°C, yet the tightly matched 45% market-implied odds on 22°C or below versus 32°C or higher reflect substantial uncertainty in minimum temperature projections for August 2. Primary drivers include variable cloud cover, humidity levels near 75–80%, and potential light precipitation that can suppress or enhance radiative cooling overnight. Official Korea Meteorological Administration guidance and ensemble forecasts highlight how steering patterns and local urban heat effects create divergence between runs, keeping trader sentiment balanced until updated model data or real-time observations narrow the range.