Predicting the exact highest temperature in a specific city on a single day is a rather niche topic. While weather markets exist, the general public almost never thinks about such a specific metric for a random day.

Between 06:28 and 07:33 on April 25, 2026, the YES price for 29°C surged from 20.5c to 30.5c. This was driven by converging weather models as the resolution date approaches, causing traders to concentrate expectations around 29°C to hedge against more extreme high-temperature forecasts.

There is a divergence. AccuWeather explicitly forecasts a high of 34°C (93°F), whereas the resolution source Wunderground forecasts 28°C. The market pricing (concentrated around 29-31°C) does not fully align with any single source, reflecting a compromise between extreme heat and more conservative models.

April 25, 2026 06:28 - 07:33, the price of the 22°C option surged from 19.5c to 29.5c. This is because, as the date approaches, weather forecast models are converging towards a high temperature of approximately 22°C, prompting traders to rapidly accumulate positions in the most likely outcome.