Official forecasts from the Korea Meteorological Administration indicate a morning low of 16°C in Seoul on June 5, aligning with early June climatology where overnight minima typically range 15–19°C under moderating spring-to-summer transitions. Current atmospheric conditions, including stable pressure patterns and limited frontal activity, support this precise outcome with high model consensus and minimal expected variance. The 100% market-implied probability reflects trader assessment of verified observational data and short-range model runs showing little room for deviation. A sudden unforecast cold surge or localized measurement anomaly could theoretically alter the recorded low, though such shifts remain improbable within the final hours of the observation window ending at 9 AM.