Highest temperature in Chicago on July 20?
84-85°F
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Understand this market
This market is asking: on July 20, 2026, how hot will Chicago get? Specifically, it wants to know which two-degree temperature band — like 86–87°F or 84–85°F — will contain the single highest temperature of that day, measured at O'Hare International Airport. Think of it as predicting the peak of the thermometer on one specific summer afternoon in Chicago, rounded to the nearest whole degree Fahrenheit.
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84-85°F
Resolution Criteria
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 20 Jul '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, available here: https://www.wunderground.com/history/daily/us/il/chicago/KORD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Read the full market guide →84-85°F
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