Madrid experiences pleasant spring weather in April, with typical temperatures ranging from 15°C to 22°C during mid-April. The question asks whether the city's highest recorded temperature on April 20, 2026 will reach 31°C or higher—a notably warm threshold for this particular time of year. Historical weather data and forecasts for Madrid are publicly available and verifiable through Spain's state meteorological service, making the outcome definitively resolvable based on official temperature records. The current prediction market odds of just 1% for YES reflect strong trader confidence that reaching 31°C in mid-April is highly unlikely. While 31°C days do occasionally occur in Madrid during late April and May, early-to-mid April typically remains substantially cooler due to established seasonal patterns. The extremely low probability suggests that current weather forecasts for April 20 are signaling below-threshold conditions, though spring weather in Madrid remains inherently variable. Traders holding a YES position would be betting on unseasonably warm weather patterns, while the overwhelming market consensus strongly favors cooler conditions consistent with typical spring temperature norms for the city.