Milan's weather in mid-April typically ranges from 12°C to 20°C, with average highs around 16-18°C and evening temperatures dropping significantly. April 20, 2026 represents a specific forecast point for this Italian city's highest daily temperature. A market outcome of exactly 20°C is a precise threshold—neither the common 18°C nor the warmer 22°C days Milan may experience. At 10% odds, the market is pricing this outcome as unlikely, suggesting traders expect either a cooler day (sub-20°C) or a warmer one (exceeding 20°C). Historical data from Milan shows 20°C highs occur roughly one to two times per week during spring, but hitting that mark on one specific date is inherently unpredictable. The market structure allows traders to position on yes (exactly 20°C) or no (any other outcome). This weather prediction market resolves based on official temperature records for Milan, making it independently verifiable and settling within 24 hours of April 21. Trading volume of $1,850 over the past day reflects moderate interest in this recurring daily weather market.