This market predicts whether London's highest recorded temperature on April 18, 2026 will be exactly 15°C. Daily temperature markets track specific meteorological outcomes, allowing traders to express precise views on weather predictions. London's April temperatures typically range between 8 and 16 degrees Celsius, making 15°C a moderate outcome well within seasonal expectations. At 2% implied odds, the market currently reflects significant skepticism about this exact temperature being reached. This low probability is driven both by the specificity required—an exact temperature match rather than a range—and the inherent uncertainty in weather forecasting even with short time horizons. The high granularity of daily weather prediction markets makes them engaging for traders who want to express nuanced views on meteorological outcomes. The market resolves based on the highest temperature recorded at London's official weather monitoring station on April 18, according to recognized UK meteorological data sources. Daily weather prediction markets can shift rapidly as new forecast updates become available and the actual date approaches. The market will close and resolve at midnight UTC on April 18, 2026.