Trader consensus on Polymarket reflects high uncertainty in short-term forecasts for Busan's highest temperature on April 5, with evenly priced outcomes from 12°C or below to 22°C or higher signaling model disagreements amid a passing spring frontal system. Korea Meteorological Administration guidance points to a baseline high near 17°C under mostly cloudy skies and 20-60% precipitation odds, following heavy rain and winds sweeping the region April 3-5 that have cooled recent daytime highs to 13-19°C range. Key differentiators include potential clearing for increased solar insolation pushing toward 20°C+ via southerly flow, versus persistent clouds or northerly winds capping at 14°C or lower; historical early-April highs average 16-18°C with similar variability. Watch KMA's next short-range update tomorrow for refined ensemble runs.