- Will the highest temperature in Chicago be 75°F or below on August 28?<1¢
- Will the highest temperature in Chicago be between 76-77°F on August 28?2¢
- Will the highest temperature in Chicago be between 78-79°F on August 28?2¢
- Will the highest temperature in Chicago be between 80-81°F on August 28?20¢
- Will the highest temperature in Chicago be between 82-83°F on August 28?59¢
- Will the highest temperature in Chicago be between 84-85°F on August 28?20¢
- Will the highest temperature in Chicago be between 86-87°F on August 28?3¢
- Will the highest temperature in Chicago be between 88-89°F on August 28?<1¢
- Will the highest temperature in Chicago be between 90-91°F on August 28?<1¢
- Will the highest temperature in Chicago be between 92-93°F on August 28?<1¢
- Will the highest temperature in Chicago be 94°F or higher on August 28?<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 28 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 This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button. If NOAA data is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source. 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.
Forecast models and National Weather Service guidance indicate a high near 80–83°F for Chicago on August 28, 2026, under mostly sunny to partly cloudy skies with light southerly winds. This range aligns with the climatological average high of 81.3°F and recent conditions featuring modest warming without strong advection or cloud cover to suppress temperatures. Trader consensus, reflected in the dominant 82–83°F market share, incorporates these official forecasts while accounting for typical model spread and urban heat island effects that can add 1–2°F locally. No significant frontal passage or precipitation is expected to alter the outcome before peak heating.