Official Automated Surface Observing System (ASOS) measurements from the National Weather Service at Chicago O'Hare (KORD) and Midway (KMDW) airports recorded a maximum temperature of 41°F on April 30, 2026—well below the 55°F threshold—driving the market's 100% implied probability for "55°F or below." This outcome stems from a persistent cool upper-level trough over the Midwest, fostering cloudy conditions, northerly winds, and temperatures 20–25°F below the 65°F climatological average for late April. Preceding NWS Chicago forecasts accurately projected highs near 50°F following a cold frontal passage earlier in the week. With observations finalized, only an extraordinary data revision by NOAA could challenge this consensus, a scenario unprecedented in standard verification processes.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoHighest temperature in Chicago on April 30?
Highest temperature in Chicago on April 30?
55°F or below 100.0%
56-57°F <1%
58-59°F <1%
60-61°F <1%
$49,078 Vol.
$49,078 Vol.
30 abr 2026
55°F or below
100%
56-57°F
<1%
58-59°F
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
<1%
66-67°F
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
<1%
74°F or higher
<1%
55°F or below 100.0%
56-57°F <1%
58-59°F <1%
60-61°F <1%
$49,078 Vol.
$49,078 Vol.
30 abr 2026
55°F or below
$13,694 Vol.
100%
56-57°F
$6,367 Vol.
<1%
58-59°F
$6,806 Vol.
<1%
60-61°F
$5,390 Vol.
<1%
62-63°F
$3,021 Vol.
<1%
64-65°F
$6,371 Vol.
<1%
66-67°F
$1,299 Vol.
<1%
68-69°F
$943 Vol.
<1%
70-71°F
$1,439 Vol.
<1%
72-73°F
$820 Vol.
<1%
74°F or higher
$2,926 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 30 Apr '26.
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.Official Automated Surface Observing System (ASOS) measurements from the National Weather Service at Chicago O'Hare (KORD) and Midway (KMDW) airports recorded a maximum temperature of 41°F on April 30, 2026—well below the 55°F threshold—driving the market's 100% implied probability for "55°F or below." This outcome stems from a persistent cool upper-level trough over the Midwest, fostering cloudy conditions, northerly winds, and temperatures 20–25°F below the 65°F climatological average for late April. Preceding NWS Chicago forecasts accurately projected highs near 50°F following a cold frontal passage earlier in the week. With observations finalized, only an extraordinary data revision by NOAA could challenge this consensus, a scenario unprecedented in standard verification processes.
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 30 Apr '26.
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.
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: Apr 28, 2026, 2:11 PM ET
Volumen
$49,078Fecha de finalización
30 abr 2026Mercado abierto
Apr 28, 2026, 2:11 PM ETFuente de resolución
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 30 Apr '26.
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.Official Automated Surface Observing System (ASOS) measurements from the National Weather Service at Chicago O'Hare (KORD) and Midway (KMDW) airports recorded a maximum temperature of 41°F on April 30, 2026—well below the 55°F threshold—driving the market's 100% implied probability for "55°F or below." This outcome stems from a persistent cool upper-level trough over the Midwest, fostering cloudy conditions, northerly winds, and temperatures 20–25°F below the 65°F climatological average for late April. Preceding NWS Chicago forecasts accurately projected highs near 50°F following a cold frontal passage earlier in the week. With observations finalized, only an extraordinary data revision by NOAA could challenge this consensus, a scenario unprecedented in standard verification processes.
This market will resolve to the temperature range that contains the highest temperature recorded at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 30 Apr '26.
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.
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.
Volumen
$49,078Fecha de finalización
30 abr 2026Mercado abierto
Apr 28, 2026, 2:11 PM ETFuente de resolución
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Official Automated Surface Observing System (ASOS) measurements from the National Weather Service at Chicago O'Hare (KORD) and Midway (KMDW) airports recorded a maximum temperature of 41°F on April 30, 2026—well below the 55°F threshold—driving the market's 100% implied probability for "55°F or below." This outcome stems from a persistent cool upper-level trough over the Midwest, fostering cloudy conditions, northerly winds, and temperatures 20–25°F below the 65°F climatological average for late April. Preceding NWS Chicago forecasts accurately projected highs near 50°F following a cold frontal passage earlier in the week. With observations finalized, only an extraordinary data revision by NOAA could challenge this consensus, a scenario unprecedented in standard verification processes.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado
Cuidado con los enlaces externos.
Cuidado con los enlaces externos.
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