Highest temperature in Chicago on May 30?

Highest temperature in Chicago on May 30? is a weather prediction market that forecasts the hottest temperature recorded at Chicago O'Hare Intl Airport Station on 30 May 2026. The event will resolve to the temperature range containing the day’s highest reading, based on Wunderground history data for the airport station in whole-degree Fahrenheit increments. Because the market cannot resolve until the first data point for the following day is published, traders are effectively pricing the final official daily high after all same-day revisions are complete. The market currently implies a low probability of a very high-temperature outcome, with odds around 10% for the referenced range. This makes the listing a straightforward event prediction tied to one measurable forecast: what the highest temperature in Chicago will be on that date. As a recurring weather market, it is closely watched by traders tracking local climate conditions, market sentiment, and short-term temperature expectations in the Chicago weather category.