Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated observing station, recorded a maximum temperature of 71°F on April 24, 2026, solidifying trader consensus at 100% implied probability for the 70-71°F outcome. Mostly cloudy skies, combined with light west-to-southwesterly winds gusting to 24 mph and dew points around 55°F, capped daytime heating despite a warm air mass well above the April 24 climatological normal of 62.4°F—part of an unusually active spring with multiple 70°F days already. Preceding NOAA forecast models had converged on low-70s highs, with observations confirming no significant deviations. Realistic challenges, though improbable post-verification, include rare data audits or instrument recalibrations shifting the peak reading.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chicago on April 24?
Highest temperature in Chicago on April 24?
70-71°F 100.0%
57°F or below <1%
58-59°F <1%
60-61°F <1%
$122,426 Vol.
$122,426 Vol.
Apr 24, 2026
57°F or below
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
Yes
72-73°F
No
74-75°F
No
76°F or higher
No
70-71°F 100.0%
57°F or below <1%
58-59°F <1%
60-61°F <1%
$122,426 Vol.
$122,426 Vol.
Apr 24, 2026
57°F or below
$29,512 Vol.
No
58-59°F
$2,900 Vol.
No
60-61°F
$1,113 Vol.
No
62-63°F
$3,198 Vol.
No
64-65°F
$3,171 Vol.
No
66-67°F
$3,392 Vol.
No
68-69°F
$6,806 Vol.
No
70-71°F
$28,702 Vol.
Yes
72-73°F
$14,975 Vol.
No
74-75°F
$12,165 Vol.
No
76°F or higher
$16,493 Vol.
No
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 24 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated observing station, recorded a maximum temperature of 71°F on April 24, 2026, solidifying trader consensus at 100% implied probability for the 70-71°F outcome. Mostly cloudy skies, combined with light west-to-southwesterly winds gusting to 24 mph and dew points around 55°F, capped daytime heating despite a warm air mass well above the April 24 climatological normal of 62.4°F—part of an unusually active spring with multiple 70°F days already. Preceding NOAA forecast models had converged on low-70s highs, with observations confirming no significant deviations. Realistic challenges, though improbable post-verification, include rare data audits or instrument recalibrations shifting the peak reading.
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 24 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 22, 2026, 12:14 AM ET
Volume
$122,426End Date
Apr 24, 2026Market Opened
Apr 22, 2026, 12:14 AM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 24 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated observing station, recorded a maximum temperature of 71°F on April 24, 2026, solidifying trader consensus at 100% implied probability for the 70-71°F outcome. Mostly cloudy skies, combined with light west-to-southwesterly winds gusting to 24 mph and dew points around 55°F, capped daytime heating despite a warm air mass well above the April 24 climatological normal of 62.4°F—part of an unusually active spring with multiple 70°F days already. Preceding NOAA forecast models had converged on low-70s highs, with observations confirming no significant deviations. Realistic challenges, though improbable post-verification, include rare data audits or instrument recalibrations shifting the peak reading.
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 24 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Chicago O'Hare Intl Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$122,426End Date
Apr 24, 2026Market Opened
Apr 22, 2026, 12:14 AM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official National Weather Service observations at Chicago O'Hare International Airport (KORD), the designated observing station, recorded a maximum temperature of 71°F on April 24, 2026, solidifying trader consensus at 100% implied probability for the 70-71°F outcome. Mostly cloudy skies, combined with light west-to-southwesterly winds gusting to 24 mph and dew points around 55°F, capped daytime heating despite a warm air mass well above the April 24 climatological normal of 62.4°F—part of an unusually active spring with multiple 70°F days already. Preceding NOAA forecast models had converged on low-70s highs, with observations confirming no significant deviations. Realistic challenges, though improbable post-verification, include rare data audits or instrument recalibrations shifting the peak reading.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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