Trader consensus on Polymarket reflects clustered model guidance for Chicago's highest temperature on April 6 in the 46–53°F range, driven by the latest National Weather Service (NWS) forecasts showing post-frontal cooling after today's spring-like storms and 70°F highs. A deepening upper-level trough over the Great Lakes will steer cool Canadian air southward, suppressing highs below the April 6 climatological normal of 55°F at O'Hare International Airport, the likely resolution site. GFS ensembles lean toward 48–50°F with lingering clouds and northwest winds, while ECMWF runs suggest slightly warmer 50–52°F potential if ridging builds; model spread creates uncertainty around exact front timing and diurnal heating. Watch NWS Chicago's afternoon updates and evening GFS initialization for shifts ahead of Sunday's resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Chicago on April 6?
Highest temperature in Chicago on April 6?
50-51°F 24%
48-49°F 23%
46-47°F 18%
52-53°F 16%
41°F or below
1%
42-43°F
1%
44-45°F
9%
46-47°F
18%
48-49°F
23%
50-51°F
24%
52-53°F
16%
54-55°F
16%
56-57°F
8%
58-59°F
2%
60°F or higher
2%
50-51°F 24%
48-49°F 23%
46-47°F 18%
52-53°F 16%
41°F or below
1%
42-43°F
1%
44-45°F
9%
46-47°F
18%
48-49°F
23%
50-51°F
24%
52-53°F
16%
54-55°F
16%
56-57°F
8%
58-59°F
2%
60°F or higher
2%
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 2, 2026, 6:02 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 reflects clustered model guidance for Chicago's highest temperature on April 6 in the 46–53°F range, driven by the latest National Weather Service (NWS) forecasts showing post-frontal cooling after today's spring-like storms and 70°F highs. A deepening upper-level trough over the Great Lakes will steer cool Canadian air southward, suppressing highs below the April 6 climatological normal of 55°F at O'Hare International Airport, the likely resolution site. GFS ensembles lean toward 48–50°F with lingering clouds and northwest winds, while ECMWF runs suggest slightly warmer 50–52°F potential if ridging builds; model spread creates uncertainty around exact front timing and diurnal heating. Watch NWS Chicago's afternoon updates and evening GFS initialization for shifts ahead of Sunday's resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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