Forecast models from the Korea Meteorological Administration and international ensembles show highs for Incheon on August 22 centered in the upper 20s to low 30s Celsius, reflecting the typical late-summer decline from peak August warmth under the North Pacific high-pressure system. High humidity, urban heat-island effects, and variable cloud cover or scattered showers introduce day-to-day spread, with afternoon convection potentially capping maxima near 28–29°C or allowing brief clearing to reach 30–31°C. Recent observations confirm persistent 29–32°C readings amid moist southerly flow, while climatological baselines place late-August averages near 28°C. The tight clustering of market-implied odds around these values captures genuine uncertainty in short-range model runs ahead of the next 48-hour forecast updates.