Trader consensus on Polymarket overwhelmingly favors a high temperature of 44°F or higher in Chicago on April 12, reflecting National Weather Service (NWS) guidance projecting a peak near 52°F at O'Hare International Airport under partly cloudy skies. This positioning stems from consistent forecast model ensembles, including the High-Resolution Rapid Refresh (HRRR) and Global Forecast System (GFS), showing a building mid-level ridge promoting mild advection after recent cooler days—April 10's high hit only 45°F amid lingering cloudiness. Slightly below the April 12 climatological normal of 58°F, the outlook benefits from light east-northeast winds and minimal precipitation risk. Realistic challenges include unexpected thickening clouds from an approaching shortwave or sharper cold air intrusion, though current soundings and model agreement suggest low probability before evening updates.
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 12?
Highest temperature in Chicago on April 12?
44°F or higher 99.8%
42-43°F <1%
25°F or below <1%
26-27°F <1%
$60,883 Vol.
$60,883 Vol.
25°F or below
<1%
26-27°F
<1%
28-29°F
<1%
30-31°F
<1%
32-33°F
<1%
34-35°F
<1%
36-37°F
<1%
38-39°F
<1%
40-41°F
<1%
42-43°F
<1%
44°F or higher
100%
44°F or higher 99.8%
42-43°F <1%
25°F or below <1%
26-27°F <1%
$60,883 Vol.
$60,883 Vol.
25°F or below
<1%
26-27°F
<1%
28-29°F
<1%
30-31°F
<1%
32-33°F
<1%
34-35°F
<1%
36-37°F
<1%
38-39°F
<1%
40-41°F
<1%
42-43°F
<1%
44°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: Apr 8, 2026, 12:08 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 overwhelmingly favors a high temperature of 44°F or higher in Chicago on April 12, reflecting National Weather Service (NWS) guidance projecting a peak near 52°F at O'Hare International Airport under partly cloudy skies. This positioning stems from consistent forecast model ensembles, including the High-Resolution Rapid Refresh (HRRR) and Global Forecast System (GFS), showing a building mid-level ridge promoting mild advection after recent cooler days—April 10's high hit only 45°F amid lingering cloudiness. Slightly below the April 12 climatological normal of 58°F, the outlook benefits from light east-northeast winds and minimal precipitation risk. Realistic challenges include unexpected thickening clouds from an approaching shortwave or sharper cold air intrusion, though current soundings and model agreement suggest low probability before evening updates.
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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