May 6, 2026 - May 7, 2026: The price of the 24°C option surged from 19.5c to 36.5c, and the 23°C option climbed from 5c to 22c (peaking at 27c), while the 26°C option plummeted from 28.5c to 5c. This was driven by the latest weather forecasts confirming cloudy and rainy conditions for Chengdu on May 8, lowering the expected high temperature to the 23°C-24°C range and causing a major market correction. During the previous analysis, over the past 3 days, no option's price had fluctuated by more than 10c, indicating relatively stable market expectations at that time.

May 6, 2026 - May 7, 2026, the price of the '72°F or higher' option plummeted from 42c to 18.5c before rebounding to 28.5c, as short-term adjustments in weather models cooled expectations for extreme highs. May 6, 2026, the price of the '68-69°F' option surged from 19c to 36c, because as the date approached, meteorological forecasts became more certain, pinning the high temperature likely within this range.

May 7, 2026 - May 7, 2026: The price of the 26°C option retracted from 33.5c to 23.5c, while the 25°C option dipped from 49.5c to 45.5c. This was caused by the latest short-term weather model updates as the resolution day approached, leading to a tighter convergence in temperature expectations. May 6, 2026 - May 7, 2026: The price of the 26°C option surged from 11.5c to 33.5c, and the 25°C option climbed from 33.5c to 49.5c, driven by earlier forecasts predicting an unexpected warming trend, which prompted the market to swiftly price in higher temperatures.

Predicting the daily high temperature of a specific city falls under weather derivatives in prediction markets. While not a mainstream political or economic event of mass interest, it has a dedicated audience on certain platforms. It is somewhat niche but definitely not extremely bizarre.