Recent forecasts from the Korea Meteorological Administration and extended models show persistent heatwave conditions over the Korean Peninsula, with daytime highs near 37–38°C and elevated humidity limiting nocturnal radiative cooling, keeping overnight lows centered around 26–28°C for Seoul and Incheon on August 4. Trader consensus clusters on these values because urban heat-island effects and light winds are expected to hold minima above the long-term early-August average of 23–25°C, while any late-day cloud cover or scattered showers could shave 1–2°C from the floor. Model spread in boundary-layer moisture and steering flow creates the narrow 21.5%–19.5% split between 27°C and 28°C outcomes, with resolution hinging on the final 24-hour observational update from Incheon International Airport.