The near-unanimous trader consensus for a high temperature of 56°F or higher in Chicago on May 14 reflects strong alignment across National Weather Service (NWS) Chicago forecasts and ensemble models like GFS and ECMWF, projecting daytime peaks near 58°F at O'Hare International Airport—the market's official observation site. This positioning stems from a warming trend after today's relatively cool highs around 54°F, as building high pressure brings mostly sunny skies, light northeast winds, and efficient diurnal heating from overnight lows near 40°F. Historical May 14 normals hover around 70°F, providing ample climatological precedent. While inherent forecast uncertainty exists, scenarios challenging this—like persistent lake-effect clouds or an unexpected frontal boundary—appear improbable per current guidance, with key updates from evening model runs expected to refine confidence further.
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 14?
Highest temperature in Chicago on May 14?
56°F or higher 99.6%
54-55°F <1%
48-49°F <1%
37°F or below <1%
$47,208 Vol.
$47,208 Vol.
37°F or below
<1%
38-39°F
<1%
40-41°F
<1%
42-43°F
<1%
44-45°F
<1%
46-47°F
<1%
48-49°F
<1%
50-51°F
<1%
52-53°F
<1%
54-55°F
<1%
56°F or higher
100%
56°F or higher 99.6%
54-55°F <1%
48-49°F <1%
37°F or below <1%
$47,208 Vol.
$47,208 Vol.
37°F or below
<1%
38-39°F
<1%
40-41°F
<1%
42-43°F
<1%
44-45°F
<1%
46-47°F
<1%
48-49°F
<1%
50-51°F
<1%
52-53°F
<1%
54-55°F
<1%
56°F or higher
100%
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 12, 2026, 12:17 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...The near-unanimous trader consensus for a high temperature of 56°F or higher in Chicago on May 14 reflects strong alignment across National Weather Service (NWS) Chicago forecasts and ensemble models like GFS and ECMWF, projecting daytime peaks near 58°F at O'Hare International Airport—the market's official observation site. This positioning stems from a warming trend after today's relatively cool highs around 54°F, as building high pressure brings mostly sunny skies, light northeast winds, and efficient diurnal heating from overnight lows near 40°F. Historical May 14 normals hover around 70°F, providing ample climatological precedent. While inherent forecast uncertainty exists, scenarios challenging this—like persistent lake-effect clouds or an unexpected frontal boundary—appear improbable per current guidance, with key updates from evening model runs expected to refine confidence further.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions