Highest temperature in Chicago on June 1?

Highest temperature in Chicago on June 1? is a weather prediction market asking traders to forecast the hottest temperature recorded at Chicago O'Hare Intl Airport Station on June 1, 2026. The market resolves to the temperature range that contains the day’s highest reading, based on Wunderground’s daily history data for KORD, with temperatures measured in whole degrees Fahrenheit. Because the resolution depends on the final published data point for the following day, the outcome will not be finalized until after the June 1 observations are complete and any revisions within that window are accounted for. This event matters because daily temperature markets translate real-world weather conditions into a clear event prediction, making them useful for tracking market sentiment around Chicago weather and short-term forecast expectations. Current market probability is about 25%, suggesting traders assign a modest chance to the relevant outcome range, though that odds estimate can shift as new information arrives. As a recurring weather market, it reflects both seasonal temperature expectations and live prediction market activity around the Chicago daily temperature forecast.