**Trader consensus heavily favors a 16°C low for Seoul on June 11, 2026, at 97.9% implied probability, reflecting alignment with official forecasts.** The Korea Meteorological Administration (KMA) and supporting models project a morning minimum of 16°C between 3–9 AM under partly cloudy to mostly sunny early-summer conditions, with daytime highs near 26–29°C. This sits squarely within the typical early-June climatological range for Seoul, where average overnight lows hover around 15–17°C amid rising but not yet peak monsoon humidity and moderate radiative cooling overnight. Recent model consensus shows stable steering patterns with no strong cold advection or clear-sky radiative surprises expected, keeping temperatures from dipping lower. Historical analogs for early June confirm lows rarely fall below 14–15°C without a distinct frontal passage, which is absent here. The primary drivers locking in this outcome are the verified forecast guidance and absence of destabilizing atmospheric features. Scenarios that could realistically shift the result include an unforecasted nocturnal clear spell enhancing radiative cooling or a late-arriving weak front—both low-probability given current observations and model agreement. New KMA updates or real-time station readings remain the key near-term variables.