Recent Korea Meteorological Administration forecasts for Seoul and Incheon point to a maximum near 33–34 °C on August 12 under mostly clear to partly cloudy skies and minimal precipitation chances, sustaining trader emphasis on the narrow 32–33 °C band. Persistent subtropical high pressure favors strong daytime insolation and surface heating, yet easterly flow off the Yellow Sea and modest afternoon cloud development introduce slight cooling that keeps outcomes tightly clustered. Model consensus shows limited spread in boundary-layer temperatures, with small differences in low-level moisture and wind speed determining whether the daily peak registers at 32 °C or edges to 33 °C. Ongoing moderation after early-August heat records above 40 °C further supports the market’s focus on these two values ahead of final observational data.