Current observational data and forecast models from agencies tracking East Asian autumn patterns show Busan under clear, stable high-pressure conditions on October 8, 2026, with afternoon temperatures climbing steadily to a peak near 25°C. Multiple runs indicate light southeasterly winds and minimal cloud cover allowing efficient solar heating without exceeding that threshold, aligning with climatological norms for early October in the region. This drives the market-implied odds of 100% for exactly 25°C as the daily high. Realistic challenges include localized measurement variations at official stations or rapid late-day cooling from unexpected marine influence, though model consensus and real-time readings make significant deviation improbable before resolution.