Recent Korea Meteorological Administration observations and ensemble forecasts for June 1 indicate a daytime high of 25°C in Seoul under stable early-summer conditions with moderate southerly flow and partial cloud cover. This aligns precisely with climatological averages for the date and keeps the market-implied probability for 25°C at 100 percent, reflecting strong consensus across official models with minimal divergence. Lower-temperature outcomes remain near zero because current surface observations and short-range guidance show no realistic pathway to sub-25°C maxima. A sudden frontal passage or measurement revision could theoretically alter the recorded high, though such shifts are historically rare this early in the season.