**Trader sentiment for Busan's lowest temperature on August 28 centers on 25–26°C as the most probable range, with market-implied probabilities of 55% for 26°C and 42.5% for 25°C.** These lead because current forecast guidance from multiple models, including international sources, points to overnight lows in this band under persistent cloud cover, high humidity (often 80–95%), and widespread rain or thunderstorms expected through the night. Official Korea Meteorological Administration guidance for the Busan region shows a minimum temperature range of 23–25°C, reflecting the influence of a broad area of low pressure and moist southwesterly flow that limits nocturnal radiative cooling. International models align closely, with several projecting 26–27°C (around 81°F) lows due to the insulating effects of cloud decks and elevated dew points near 26–27°C. This setup favors minimums several degrees above the long-term August average low of roughly 23°C while making sub-24°C outcomes less likely without a sharper clearing trend. Recent developments include ongoing heavy rain episodes and thunderstorm activity across the region on August 27–28, which sustain high moisture and suppress temperature drops. No major model shifts or sudden dry-air intrusions have emerged in the latest updates, keeping the distribution centered near 25–26°C with secondary support for 24°C (30.5%) if localized clearing occurs. Probabilities drop sharply below 23°C or above 28°C, consistent with the narrow uncertainty range in short-term guidance for this coastal location.