Current forecasts from the Korea Meteorological Administration and global models indicate Seoul's June 17 daytime maximum will likely fall between 28–30 °C, with 28 °C holding the narrowest edge in trader consensus. Key differentiating factors include the strength of a transient high-pressure ridge, which supports clear skies and modest warming, versus increasing low-level moisture and possible afternoon cloud build-up that could cap temperatures near 28 °C. Wind direction and urban heat-island effects add further variability, while the early monsoon transition has not yet delivered widespread cooling. Updated model runs and KMA briefings over the next 48 hours will narrow the range, keeping 27–30 °C outcomes tightly contested until resolution.