Madrid's spring weather during April typically brings moderate conditions, with daily highs commonly ranging between 15 and 22 degrees Celsius. This specific market asks whether the highest temperature will reach exactly 24°C on April 20, 2026—a high-precision threshold that traders currently view as highly unlikely, reflected in the zero percent odds. Weather markets like this settle against verified meteorological data from official sources serving Madrid, making the outcome objectively resolvable regardless of market positioning. The zero percent odds suggest traders believe this temperature target either exceeds historical norms for this period or represents a low-probability weather scenario. April in Madrid exhibits variable conditions influenced by Atlantic systems and spring transitional patterns that typically produce more moderate temperatures. Any odds trajectory would likely reflect early-month temperature readings that set precedent for expected ranges. The market will resolve based on official recorded data on April 20 at market close, with settlement determined by whether Madrid's actual high reaches the specified 24°C threshold. This binary outcome provides clear, unambiguous resolution.