Korea Meteorological Administration forecasts indicate Seoul's highest temperature on March 27 will likely hover around 13-14°C, aligning with trader consensus where those outcomes trade at 21-22% implied probabilities amid tight competition. This positioning stems from ensemble model runs (ECMWF, GFS, and KMA's own projections) showing a mean high of about 13.5°C under lingering East Asian winter monsoon influences, with a weakening Siberian high pressure ridge allowing mild southerly flows but capping warmth. Recent observations over the past week averaged 11-12°C highs, with no major cold snaps or warm anomalies in the last 48 hours shifting models dramatically. Differentiating factors include minor ensemble spreads—cooler biases toward 12°C from persistent cloud cover versus warmer outliers to 15-16°C if diurnal heating intensifies—and urban heat effects at Seoul's official measurement sites. Traders await KMA's 12-hour update tomorrow, which could refine resolution odds for this time-sensitive market resolving on observed maximums.