**Persistent heatwave conditions across the Korean Peninsula are the dominant driver positioning 34–36°C as the leading outcomes for the highest temperature at Seoul’s Incheon station on August 6, 2026.** A severe heatwave, with the first-ever severe warning issued for Seoul on August 3, has delivered record readings up to 42.5°C elsewhere in South Korea and sustained daytime highs near or above 34°C in the capital region. Clear skies, strong solar insolation, and limited cloud cover or precipitation are enabling efficient surface heating, while the Korea Meteorological Administration’s short-range guidance continues to highlight maximum temperatures in the mid-30s°C range. Recent model consensus and observed trends from August 4–5 show tight clustering around 34–35°C, reflected in the market’s highest probabilities for those exact buckets (39.5% at 35°C, 25.5% at 34°C, 22.5% at 36°C). Traders are pricing in modest uncertainty from potential small shifts in steering flow or localized sea-breeze effects near Incheon, but the overall atmospheric setup favors continuation of the current warm regime rather than a sharp cooldown or extreme spike above 37°C.