Recent official forecasts from the Korea Meteorological Administration and ensemble models indicate overnight lows in Seoul around 14–17°C for June 13, driven by clear to partly cloudy conditions and typical early-summer radiative cooling under moderate humidity. These align with climatological baselines of 16–18°C minimums for mid-June, though slight warming from southerly flow could push readings higher in some runs. Trader consensus reflected in the leading 21°C-or-higher outcome at 39% implies expectations of limited cooling, while clustered probabilities near 16–17°C highlight remaining uncertainty in the final model guidance and potential for small forecast revisions ahead of the 48-hour window.