Official National Weather Service observations and Weather Underground data from Chicago Midway International Airport (KMDW) confirm the highest temperature on April 16 reached 74-75°F, driving 100% trader consensus on this outcome as the market nears resolution. This above-normal reading for mid-April—exceeding the 59°F climatological average—stemmed from a dominant high-pressure ridge ushering southerly winds and partial sunshine, as accurately forecasted by NOAA's GFS and ECMWF models in the preceding 24-48 hours amid low spring volatility. While ASOS automated measurements offer robust evidence, rare scenarios like post hoc quality control audits revealing sensor glitches or overlooked peaks at secondary stations could prompt minor revisions, though such shifts are exceedingly uncommon.
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 16?
Highest temperature in Chicago on April 16?
74-75°F 100.0%
61°F or below <1%
62-63°F <1%
64-65°F <1%
$148,023 Vol.
$148,023 Vol.
Apr 16, 2026
61°F or below
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
Yes
76-77°F
No
78-79°F
No
80°F or higher
No
74-75°F 100.0%
61°F or below <1%
62-63°F <1%
64-65°F <1%
$148,023 Vol.
$148,023 Vol.
Apr 16, 2026
61°F or below
$12,309 Vol.
No
62-63°F
$9,069 Vol.
No
64-65°F
$11,532 Vol.
No
66-67°F
$13,252 Vol.
No
68-69°F
$12,497 Vol.
No
70-71°F
$19,484 Vol.
No
72-73°F
$25,467 Vol.
No
74-75°F
$20,125 Vol.
Yes
76-77°F
$12,620 Vol.
No
78-79°F
$5,393 Vol.
No
80°F or higher
$6,274 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 16 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 and Weather Underground data from Chicago Midway International Airport (KMDW) confirm the highest temperature on April 16 reached 74-75°F, driving 100% trader consensus on this outcome as the market nears resolution. This above-normal reading for mid-April—exceeding the 59°F climatological average—stemmed from a dominant high-pressure ridge ushering southerly winds and partial sunshine, as accurately forecasted by NOAA's GFS and ECMWF models in the preceding 24-48 hours amid low spring volatility. While ASOS automated measurements offer robust evidence, rare scenarios like post hoc quality control audits revealing sensor glitches or overlooked peaks at secondary stations could prompt minor revisions, though such shifts are exceedingly uncommon.
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 16 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 14, 2026, 6:05 PM ET
Volume
$148,023End Date
Apr 16, 2026Market Opened
Apr 14, 2026, 6:05 PM 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 16 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 and Weather Underground data from Chicago Midway International Airport (KMDW) confirm the highest temperature on April 16 reached 74-75°F, driving 100% trader consensus on this outcome as the market nears resolution. This above-normal reading for mid-April—exceeding the 59°F climatological average—stemmed from a dominant high-pressure ridge ushering southerly winds and partial sunshine, as accurately forecasted by NOAA's GFS and ECMWF models in the preceding 24-48 hours amid low spring volatility. While ASOS automated measurements offer robust evidence, rare scenarios like post hoc quality control audits revealing sensor glitches or overlooked peaks at secondary stations could prompt minor revisions, though such shifts are exceedingly uncommon.
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 16 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
$148,023End Date
Apr 16, 2026Market Opened
Apr 14, 2026, 6:05 PM 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 and Weather Underground data from Chicago Midway International Airport (KMDW) confirm the highest temperature on April 16 reached 74-75°F, driving 100% trader consensus on this outcome as the market nears resolution. This above-normal reading for mid-April—exceeding the 59°F climatological average—stemmed from a dominant high-pressure ridge ushering southerly winds and partial sunshine, as accurately forecasted by NOAA's GFS and ECMWF models in the preceding 24-48 hours amid low spring volatility. While ASOS automated measurements offer robust evidence, rare scenarios like post hoc quality control audits revealing sensor glitches or overlooked peaks at secondary stations could prompt minor revisions, though such shifts are exceedingly uncommon.
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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