Recent forecast guidance from the Korea Meteorological Administration highlights a southerly flow of warmer, moist air over the Korean Peninsula, supporting the 72.5% market-implied probability for a Seoul high of 25 °C or above on May 18. Ensemble runs from global models indicate afternoon temperatures settling in the mid-20s Celsius under partly cloudy skies, modestly above the mid-May climatological average of 19–22 °C due to elevated Yellow Sea sea-surface temperatures. These conditions favor limited daytime heating without significant cloud cover or frontal passages that could suppress maxima. Updated model consensus remains stable through the overnight period, though any unexpected shift in steering patterns or moisture influx could alter the final observed high before resolution.