- Will the highest temperature in Chicago be 65°F or below on August 23?<1¢
- Will the highest temperature in Chicago be between 66-67°F on August 23?<1¢
- Will the highest temperature in Chicago be between 68-69°F on August 23?<1¢
- Will the highest temperature in Chicago be between 70-71°F on August 23?<1¢
- Will the highest temperature in Chicago be between 72-73°F on August 23?6¢
- Will the highest temperature in Chicago be between 74-75°F on August 23?43¢
- Will the highest temperature in Chicago be between 76-77°F on August 23?41¢
- Will the highest temperature in Chicago be between 78-79°F on August 23?13¢
- Will the highest temperature in Chicago be between 80-81°F on August 23?2¢
- Will the highest temperature in Chicago be between 82-83°F on August 23?<1¢
- Will the highest temperature in Chicago be 84°F or higher on August 23?<1¢
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 23 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. 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.
Northwest winds of 5–15 mph and partial cloud cover are moderating temperatures across the Chicago area on August 23, limiting peak heating despite clear morning skies. Lake Michigan's influence further cools shoreline locations, keeping highs in the mid-70s according to National Weather Service guidance and model consensus. With historical averages near 82°F, the current setup favors 74–77°F outcomes, where small differences in wind speed, cloud timing, or lake-breeze strength can shift the daily maximum by 2–3°F. These factors explain the near-even market split between the two leading bins and the modest probability assigned to 78°F or higher.