This market tracks whether Paris will experience a daily high temperature of exactly 17°C on April 18, 2026. The current YES odds at 1% reflect the inherent difficulty of predicting such a specific temperature outcome. Weather forecasting provides reasonable accuracy for general temperature ranges—whether a day will be warm or cool—but pinpointing an exact single-degree outcome is significantly more challenging. Mid-April temperatures in Paris typically range between 10°C and 18°C depending on prevailing weather patterns. The 1% odds suggest traders view a 17°C high as unlikely relative to other possible outcomes within that typical range. Temperature data is publicly available from official meteorological sources, making the market objectively resolvable once the trading date passes. The market reflects the tension between historical temperature patterns and the extreme precision required for resolution. Traders have balanced the specific nature of this prediction against the volatility of weather systems that could shift the daily high temperature in either direction. This type of recurring daily market provides a mechanism for weather-interested traders to express granular forecasts on local conditions.