Seoul experiences variable spring weather in mid-April, with daily highs fluctuating based on prevailing wind patterns and atmospheric systems. This market resolves based on whether the official highest temperature recorded on April 18, 2026 will equal exactly 17°C. The 2% current YES odds reflect trader assessment that this precise temperature outcome is unlikely. April temperatures in Seoul typically range from 18 to 22°C, though cooler days occasionally occur when cold fronts move through. At these low odds, the market implies either that forecasts suggest higher temperatures or that traders believe the probability of an exact 17°C high is near negligible. Daily temperature markets resolve fully and objectively using official meteorological data from the Korea Meteorological Administration, making them fully resolvable instruments. The low current probability may also signal that recent forecast updates point toward warmer conditions, or that historical April patterns in Seoul favor temperatures above 17°C. Temperature odds on these markets typically compress as the resolution date approaches and as updated forecasts arrive, creating potential price movement throughout the trading period.