National Weather Service forecasts project a high of 69°F at Chicago O'Hare International Airport (KORD) on April 2, 2026, driving trader consensus to 100% implied probability for 48°F or higher, well above seasonal normals of 54°F. Morning observations around 40°F are warming rapidly under southwesterly winds and warm air advection ahead of an approaching cold front with severe thunderstorms expected this afternoon. Model ensembles from NOAA align on peak heating in the upper 60s before cloud cover and gusty winds potentially limit further gains. Realistic challenges include early storm arrival suppressing diurnal heating or unforecasted upper-level cooling, though current satellite and radar data show minimal disruption to the warm sector, with final observations tracked via official KORD records through midnight.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Chicago on April 2?
Highest temperature in Chicago on April 2?
48°F or higher 100.0%
29°F or below <1%
30-31°F <1%
32-33°F <1%
$180,174 Vol.
$180,174 Vol.
29°F or below
No
30-31°F
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°F or higher
Yes
48°F or higher 100.0%
29°F or below <1%
30-31°F <1%
32-33°F <1%
$180,174 Vol.
$180,174 Vol.
29°F or below
No
30-31°F
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°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: Mar 29, 2026, 2:22 PM 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
National Weather Service forecasts project a high of 69°F at Chicago O'Hare International Airport (KORD) on April 2, 2026, driving trader consensus to 100% implied probability for 48°F or higher, well above seasonal normals of 54°F. Morning observations around 40°F are warming rapidly under southwesterly winds and warm air advection ahead of an approaching cold front with severe thunderstorms expected this afternoon. Model ensembles from NOAA align on peak heating in the upper 60s before cloud cover and gusty winds potentially limit further gains. Realistic challenges include early storm arrival suppressing diurnal heating or unforecasted upper-level cooling, though current satellite and radar data show minimal disruption to the warm sector, with final observations tracked via official KORD records through midnight.
Experimental AI-generated summary referencing Polymarket data · Updated
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