**Official National Weather Service observations from Chicago O’Hare on September 12, 2026, recorded a daily maximum of 88 °F under mostly sunny skies with light to moderate west-southwest winds, placing the high squarely in the market’s dominant 86-87 °F outcome.** Pre-event model consensus and climatological normals (historical September 12 average high near 77 °F) had pointed to mid-to-upper 80s, and the observed value aligned with that guidance rather than any late intensification from anomalous warmth or calm conditions. With resolution now based on verified station data, the near-100 % market-implied probability reflects the absence of measurement uncertainty or alternative reporting sources that could shift the result into the 88-89 °F bin. The only realistic challenges would involve a revised official climatological summary or a switch to a secondary station (such as Midway) showing a meaningfully different peak, both of which remain low-probability events given standard NWS procedures.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · AktualisiertHöchste Temperatur in Chicago am 12. September?
Höchste Temperatur in Chicago am 12. September?
86-87°F 100.0%
73°F oder weniger <1%
74-75 °F <1%
76-77°F <1%
$50,178 Vol.
$50,178 Vol.
12. Sep. 2026
73°F oder weniger
Nein
74-75 °F
Nein
76-77°F
Nein
78-79 °F
Nein
80-81°F
Nein
82-83°F
Nein
84-85°F
Nein
86-87°F
Ja
88-89°F
Nein
90-91°F
Nein
92°F oder höher
Nein
86-87°F 100.0%
73°F oder weniger <1%
74-75 °F <1%
76-77°F <1%
$50,178 Vol.
$50,178 Vol.
12. Sep. 2026
73°F oder weniger
$508 Vol.
Nein
74-75 °F
$508 Vol.
Nein
76-77°F
$200 Vol.
Nein
78-79 °F
$327 Vol.
Nein
80-81°F
$1,488 Vol.
Nein
82-83°F
$4,219 Vol.
Nein
84-85°F
$8,882 Vol.
Nein
86-87°F
$17,987 Vol.
Ja
88-89°F
$6,257 Vol.
Nein
90-91°F
$5,873 Vol.
Nein
92°F oder höher
$3,927 Vol.
Nein
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 12 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Official National Weather Service observations from Chicago O’Hare on September 12, 2026, recorded a daily maximum of 88 °F under mostly sunny skies with light to moderate west-southwest winds, placing the high squarely in the market’s dominant 86-87 °F outcome.** Pre-event model consensus and climatological normals (historical September 12 average high near 77 °F) had pointed to mid-to-upper 80s, and the observed value aligned with that guidance rather than any late intensification from anomalous warmth or calm conditions. With resolution now based on verified station data, the near-100 % market-implied probability reflects the absence of measurement uncertainty or alternative reporting sources that could shift the result into the 88-89 °F bin. The only realistic challenges would involve a revised official climatological summary or a switch to a secondary station (such as Midway) showing a meaningfully different peak, both of which remain low-probability events given standard NWS procedures.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 12 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Markt eröffnet: Sep 10, 2026, 2:56 AM ET
Volumen
$50,178Enddatum
12. Sep. 2026Markt eröffnet
Sep 10, 2026, 2:56 AM ETAbwicklungsquelle
https://www.weather.gov/wrh/timeseries?site=kordAbwickler
0x69c47De9D...Vorgeschlagenes Ergebnis: Nein
Kein Einspruch
Endgültiges Ergebnis: Nein
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 12 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.**Official National Weather Service observations from Chicago O’Hare on September 12, 2026, recorded a daily maximum of 88 °F under mostly sunny skies with light to moderate west-southwest winds, placing the high squarely in the market’s dominant 86-87 °F outcome.** Pre-event model consensus and climatological normals (historical September 12 average high near 77 °F) had pointed to mid-to-upper 80s, and the observed value aligned with that guidance rather than any late intensification from anomalous warmth or calm conditions. With resolution now based on verified station data, the near-100 % market-implied probability reflects the absence of measurement uncertainty or alternative reporting sources that could shift the result into the 88-89 °F bin. The only realistic challenges would involve a revised official climatological summary or a switch to a secondary station (such as Midway) showing a meaningfully different peak, both of which remain low-probability events given standard NWS procedures.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 12 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=kord
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Volumen
$50,178Enddatum
12. Sep. 2026Markt eröffnet
Sep 10, 2026, 2:56 AM ETAbwicklungsquelle
https://www.weather.gov/wrh/timeseries?site=kordAbwickler
0x69c47De9D...Vorgeschlagenes Ergebnis: Nein
Kein Einspruch
Endgültiges Ergebnis: Nein
**Official National Weather Service observations from Chicago O’Hare on September 12, 2026, recorded a daily maximum of 88 °F under mostly sunny skies with light to moderate west-southwest winds, placing the high squarely in the market’s dominant 86-87 °F outcome.** Pre-event model consensus and climatological normals (historical September 12 average high near 77 °F) had pointed to mid-to-upper 80s, and the observed value aligned with that guidance rather than any late intensification from anomalous warmth or calm conditions. With resolution now based on verified station data, the near-100 % market-implied probability reflects the absence of measurement uncertainty or alternative reporting sources that could shift the result into the 88-89 °F bin. The only realistic challenges would involve a revised official climatological summary or a switch to a secondary station (such as Midway) showing a meaningfully different peak, both of which remain low-probability events given standard NWS procedures.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten. Dies ist keine Handelsberatung und spielt keine Rolle bei der Auflösung dieses Marktes. · Aktualisiert
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Vorsicht bei externen Links.
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