Between April 28, 2026, and April 30, 2026, the price of the '23°C' option plummeted from 34.5c to 1.5c, and the '24°C' option fell from 37c to 16.5c, while the '25°C or higher' option surged from 63.5c to 81c. This sharp movement indicates that earlier forecasts of significant cooling were proven incorrect, as the actual daytime temperature on the resolution day trended much warmer, exceeding 25°C.

There is a significant divergence. The prediction market currently prices the '69°F or below' option at 43c (implying a 43% probability), whereas mainstream weather services like Wunderground confidently forecast a high of only 66-67°F [3]. The market has not fully priced in the latest cool weather forecast.

Predicting the daily high temperature for a specific city is a standard long-tail weather topic in prediction markets. While more niche than macroeconomics or major political elections, it is very common among quantitative participants looking for edge, making it moderately novel.

Mainstream weather forecasts pinpoint the high temperature at 21°C or 22°C. However, the prediction market heavily overprices outlier options like 19°C and 23°C, leading to an extremely high implied probability overflow.

Predicting the exact daily high temperature for a specific city is uncommon in everyday public discourse, but it is a relatively established and standard weather derivative in prediction markets, giving it a moderate novelty factor.