Predicting the daily high temperature for a specific city is a common 'routine data' topic in prediction markets. While it doesn't concern major geopolitical or macro events and is relatively niche, it is a typical weather betting market and not overly bizarre.

April 3, 2026 - April 5, 2026, the price of the 21°C option surged from approx 21c to 41c, while the 23°C option plunged from nearly 30c to 4.5c. The reason is that updated short-term high-resolution weather forecasts ruled out the possibility of higher temperatures like 23°C and above, driving capital to rapidly concentrate on the most likely temperature range of 21°C and 22°C. April 2, 2026 - April 3, 2026, the price of the 23°C option surged from 8c to approx 29c, while the 24°C or higher option plunged from 19.5c to 4.5c, and the 19°C option dropped from 17.5c to 7c. The reason is that as the expiration date approaches, updated forecasts ruled out extreme highs (24°C+) and cooler scenarios (19°C), driving capital to concentrate on the most likely inland airport temperature range.