Latest NOAA Global Forecast System (GFS) and European Centre for Medium-Range Weather Forecasts (ECMWF) ensemble guidance projects Chicago O'Hare highs on April 4 in the mid-to-upper 50s°F, with significant spread across members—some capping below 57°F under persistent cloud cover and cool Canadian air mass influence, others reaching low 60s°F if diurnal heating and southerly winds prevail. This model divergence, amid a recent chilly start to April (April 1 high of 39°F, well below the 54.4°F normal), drives the tight clustering of market-implied odds around 57°F or below (25%), 62-63°F (22%), and 58-59°F (21.5%), reflecting trader consensus on spring transitional uncertainty. Watch tomorrow's 12z model runs and National Weather Service updates for potential sharpening.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · AktualisiertHighest temperature in Chicago on April 4?
Highest temperature in Chicago on April 4?
57°F or below 26%
58-59°F 22%
62-63°F 20%
60-61°F 17%
$41,859 Vol.
$41,859 Vol.
57°F or below
26%
58-59°F
22%
60-61°F
17%
62-63°F
20%
64-65°F
13%
66-67°F
6%
68-69°F
1%
70-71°F
1%
72-73°F
<1%
74-75°F
<1%
76°F or higher
<1%
57°F or below 26%
58-59°F 22%
62-63°F 20%
60-61°F 17%
$41,859 Vol.
$41,859 Vol.
57°F or below
26%
58-59°F
22%
60-61°F
17%
62-63°F
20%
64-65°F
13%
66-67°F
6%
68-69°F
1%
70-71°F
1%
72-73°F
<1%
74-75°F
<1%
76°F or higher
<1%
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.
Markt eröffnet: Mar 29, 2026, 4:52 PM ET
Abwicklungsquelle
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.
Abwicklungsquelle
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Latest NOAA Global Forecast System (GFS) and European Centre for Medium-Range Weather Forecasts (ECMWF) ensemble guidance projects Chicago O'Hare highs on April 4 in the mid-to-upper 50s°F, with significant spread across members—some capping below 57°F under persistent cloud cover and cool Canadian air mass influence, others reaching low 60s°F if diurnal heating and southerly winds prevail. This model divergence, amid a recent chilly start to April (April 1 high of 39°F, well below the 54.4°F normal), drives the tight clustering of market-implied odds around 57°F or below (25%), 62-63°F (22%), and 58-59°F (21.5%), reflecting trader consensus on spring transitional uncertainty. Watch tomorrow's 12z model runs and National Weather Service updates for potential sharpening.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · Aktualisiert
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Vorsicht bei externen Links.
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