Official forecasts from the Korea Meteorological Administration indicate Seoul will reach a daytime maximum of 26°C today under persistent cloud cover and scattered showers that limit surface heating and solar radiation. This aligns with late-May climatology, where typical highs hover near 22–25°C amid variable springtime humidity and weak pressure gradients that suppress strong warming. The market’s near-certain 26°C outcome reflects real-time trader consensus on these stable conditions, with minimal upside risk from model runs showing only modest diurnal temperature ranges. A sudden clearing of skies or stronger southerly flow could push readings to 27°C or above, though current observations and short-range guidance make that unlikely before resolution.