Recent forecasts from the Korea Meteorological Administration and international models indicate mostly cloudy conditions over Seoul and Incheon on August 20, with daytime maxima centered near 32–33 °C but tempered by increasing cloud cover and a modest chance of showers. These factors limit peak solar insolation and surface heating, keeping the highest temperature within a narrow range around 29–30 °C according to trader consensus. Differentiating variables include the precise timing and coverage of afternoon clouds, boundary-layer moisture, and any weak frontal passage that could shave 1–2 °C from the daily high. Historical August variability in the region shows similar setups frequently resolve 1–2 °C cooler than clear-sky projections, supporting the closely matched market-implied odds between the two leading outcomes. Updated model runs and official briefings expected in the next 48 hours will provide the clearest signal ahead of resolution.