Trader consensus favors 39°F or below at 46% implied probability for Chicago's highest temperature on April 3, reflecting National Weather Service GFS and ECMWF model ensembles centering outcomes around 40-55°F—well below the 54°F climatological normal at O'Hare International Airport—due to persistent cold air advection behind recent frontal passages. Over the past 48 hours, strong cold fronts sweeping the Midwest have reinforced an upper-level trough pattern, limiting peak heating with cloudy skies and potential lake-influenced moderation from Lake Michigan. Historical April 3 variability supports cool outliers, though uncertainty remains in exact clearing and diurnal warming; watch NOAA's 00Z/12Z model runs and NWS Chicago's afternoon forecast discussion for shifts ahead of resolution.
Resumen experimental generado por IA con datos de Polymarket · ActualizadoHighest temperature in Chicago on April 3?
Highest temperature in Chicago on April 3?
39°F or below 32%
58°F or higher 26%
54-55°F 19%
42-43°F 16%
39°F or below
32%
40-41°F
13%
42-43°F
16%
44-45°F
10%
46-47°F
9%
48-49°F
14%
50-51°F
11%
52-53°F
12%
54-55°F
19%
56-57°F
9%
58°F or higher
14%
39°F or below 32%
58°F or higher 26%
54-55°F 19%
42-43°F 16%
39°F or below
32%
40-41°F
13%
42-43°F
16%
44-45°F
10%
46-47°F
9%
48-49°F
14%
50-51°F
11%
52-53°F
12%
54-55°F
19%
56-57°F
9%
58°F or higher
14%
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.
Mercado abierto: Mar 29, 2026, 3:03 PM 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 favors 39°F or below at 46% implied probability for Chicago's highest temperature on April 3, reflecting National Weather Service GFS and ECMWF model ensembles centering outcomes around 40-55°F—well below the 54°F climatological normal at O'Hare International Airport—due to persistent cold air advection behind recent frontal passages. Over the past 48 hours, strong cold fronts sweeping the Midwest have reinforced an upper-level trough pattern, limiting peak heating with cloudy skies and potential lake-influenced moderation from Lake Michigan. Historical April 3 variability supports cool outliers, though uncertainty remains in exact clearing and diurnal warming; watch NOAA's 00Z/12Z model runs and NWS Chicago's afternoon forecast discussion for shifts ahead of resolution.
Resumen experimental generado por IA con datos de Polymarket · Actualizado
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