Trader consensus on Polymarket overwhelmingly backs a high temperature of 50°F or higher in Chicago on April 22, 2026, reflecting National Weather Service forecasts projecting afternoon highs of 65–75°F at O'Hare International Airport under partly sunny skies. This positioning stems from a persistent upper-level ridge fostering warm southwesterly flow and temperatures building on April's 5+ degree surplus—14 of 22 days above normal—following recent severe storms on April 17. Model consensus from NOAA ensembles shows ample heating potential after morning lows near 50°F, with light winds minimizing mixing. Realistic challenges include an unusually strong lake breeze surge or unforecast thunderstorms capping insolation, though synoptic patterns make sub-50°F highs improbable given historical April analogs averaging 62°F. Hourly observations will refine this through sunset.
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 22?
50°F or higher 100.0%
31°F or below <1%
32-33°F <1%
34-35°F <1%
$84,023 Vol.
$84,023 Vol.
31°F or below
No
32-33°F
No
34-35°F
No
36-37°F
No
38-39°F
No
40-41°F
No
42-43°F
No
44-45°F
No
46-47°F
No
48-49°F
No
50°F or higher
Yes
50°F or higher 100.0%
31°F or below <1%
32-33°F <1%
34-35°F <1%
$84,023 Vol.
$84,023 Vol.
31°F or below
No
32-33°F
No
34-35°F
No
36-37°F
No
38-39°F
No
40-41°F
No
42-43°F
No
44-45°F
No
46-47°F
No
48-49°F
No
50°F or higher
Yes
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 20, 2026, 12:06 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket overwhelmingly backs a high temperature of 50°F or higher in Chicago on April 22, 2026, reflecting National Weather Service forecasts projecting afternoon highs of 65–75°F at O'Hare International Airport under partly sunny skies. This positioning stems from a persistent upper-level ridge fostering warm southwesterly flow and temperatures building on April's 5+ degree surplus—14 of 22 days above normal—following recent severe storms on April 17. Model consensus from NOAA ensembles shows ample heating potential after morning lows near 50°F, with light winds minimizing mixing. Realistic challenges include an unusually strong lake breeze surge or unforecast thunderstorms capping insolation, though synoptic patterns make sub-50°F highs improbable given historical April analogs averaging 62°F. Hourly observations will refine this through sunset.
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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