Trader consensus on Polymarket heavily favors a high temperature of 58-59°F in Chicago today, reflecting strong alignment with National Weather Service forecasts indicating a daytime peak near 58°F amid persistent north-northwest winds of 10-15 mph and partly cloudy skies following a recent cold frontal passage. This positioning stems from the latest model runs, including GFS and NAM guidance, which show limited warm air advection in a cool upper-air pattern, compounded by Lake Michigan's moderating influence on nearshore temperatures—ORD observations will resolve the market via Weather Underground data. While climatological May 13 normals hover around 69°F, current conditions suppress heating. Realistic challenges include unexpected clearing allowing more solar insolation to nudge highs into 60-61°F, or thickening clouds dropping below 58°F; hourly updates from NOAA stations will refine this through afternoon.
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 May 13?
Highest temperature in Chicago on May 13?
58-59°F 97.8%
60-61°F 2.0%
62-63°F <1%
64°F or higher <1%
$90,524 Vol.
$90,524 Vol.
58-59°F
98%
60-61°F
2%
62-63°F
1%
64°F or higher
<1%
58-59°F 97.8%
60-61°F 2.0%
62-63°F <1%
64°F or higher <1%
$90,524 Vol.
$90,524 Vol.
58-59°F
98%
60-61°F
2%
62-63°F
1%
64°F or higher
<1%
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: May 11, 2026, 12:15 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...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...Trader consensus on Polymarket heavily favors a high temperature of 58-59°F in Chicago today, reflecting strong alignment with National Weather Service forecasts indicating a daytime peak near 58°F amid persistent north-northwest winds of 10-15 mph and partly cloudy skies following a recent cold frontal passage. This positioning stems from the latest model runs, including GFS and NAM guidance, which show limited warm air advection in a cool upper-air pattern, compounded by Lake Michigan's moderating influence on nearshore temperatures—ORD observations will resolve the market via Weather Underground data. While climatological May 13 normals hover around 69°F, current conditions suppress heating. Realistic challenges include unexpected clearing allowing more solar insolation to nudge highs into 60-61°F, or thickening clouds dropping below 58°F; hourly updates from NOAA stations will refine this through afternoon.
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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