Recent official guidance from the Korea Meteorological Administration and global model ensembles indicates stable high-pressure dominance over the Korean Peninsula, with light southerly winds, scattered clouds, and low precipitation chances through June 16. These conditions support moderate overnight radiative cooling, producing forecast minimum temperatures clustered around 17–18°C. Trader sentiment, reflected in the tight 18–20°C band capturing over 90% of probability, stems from subtle model spreads in boundary-layer moisture and cloud timing: clearer skies enhance cooling toward 18°C or below, while modest humidity increases or reduced wind could limit the drop to 19–20°C. Mid-June climatology shows typical lows near 16–18°C under similar regimes, with little recent change in large-scale steering patterns to shift the outlook.