**Current forecasts position 31–32°C as the most probable range for Busan’s highest temperature on August 31, 2026, aligning with the market’s leading implied probabilities (32°C at 51%, 31°C at 24.5%).** Multiple models, including those referenced by WeatherBug, Met Office, and others, indicate daytime highs near 30–31.7°C (roughly 86–89°F) under partly cloudy to stormy conditions with 40–70% rain chances. Southwesterly winds and high humidity (around 70–80%) are expected to support these values while moderating extreme peaks. Recent developments reinforce this clustering: persistent late-summer warmth combined with a stationary front has maintained perceived temperatures near 33°C amid showers, with official advisories noting daytime maxima of 30–32°C through the period. Rain and cloud cover introduce modest uncertainty that could cap the high below 33°C or allow brief spikes toward it, consistent with the smaller probabilities assigned to 33°C (15.5%) and higher outcomes. Historical late-August baselines for Busan (typically 29–32°C) further anchor trader sentiment around these levels, with resolution hinging on official Korea Meteorological Administration observations.