Official National Weather Service observations from Chicago-O'Hare, the primary reference station, recorded a maximum temperature of 87°F on August 31, 2026—well above the 80°F normal but below historical extremes like the 99°F record from 1953. A late-summer heat dome drove the warmth through southerly flow and elevated dew points, yet daytime showers, thunderstorms, and cloud cover limited further intensification. This aligns directly with the market-implied 86-87°F outcome at near-certainty. Resolution could shift only in the unlikely event of station-specific data revisions or alternative measurement protocols overriding the official report.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Chicago on August 31?
Highest temperature in Chicago on August 31?
86-87°F 100.0%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$95,933 Vol.
$95,933 Vol.
Aug 31, 2026
81°F or below
No
82-83°F
No
84-85°F
No
86-87°F
Yes
88-89°F
No
90-91°F
No
92-93°F
No
94-95°F
No
96-97°F
No
98-99°F
No
100°F or higher
No
86-87°F 100.0%
81°F or below <1%
82-83°F <1%
84-85°F <1%
$95,933 Vol.
$95,933 Vol.
Aug 31, 2026
81°F or below
$2,934 Vol.
No
82-83°F
$2,088 Vol.
No
84-85°F
$44,911 Vol.
No
86-87°F
$12,842 Vol.
Yes
88-89°F
$7,526 Vol.
No
90-91°F
$10,737 Vol.
No
92-93°F
$7,060 Vol.
No
94-95°F
$4,925 Vol.
No
96-97°F
$1,491 Vol.
No
98-99°F
$1,080 Vol.
No
100°F or higher
$338 Vol.
No
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 31 Aug '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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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, the primary reference station, recorded a maximum temperature of 87°F on August 31, 2026—well above the 80°F normal but below historical extremes like the 99°F record from 1953. A late-summer heat dome drove the warmth through southerly flow and elevated dew points, yet daytime showers, thunderstorms, and cloud cover limited further intensification. This aligns directly with the market-implied 86-87°F outcome at near-certainty. Resolution could shift only in the unlikely event of station-specific data revisions or alternative measurement protocols overriding the official report.
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 31 Aug '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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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.
Binuksan ang Market: Aug 29, 2026, 3:56 AM ET
Volume
$95,933Petsa ng Pagtatapos
Aug 31, 2026Binuksan ang Market
Aug 29, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...Na-propose ang outcome: No
Walang dispute
Pinal na outcome: No
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 31 Aug '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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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, the primary reference station, recorded a maximum temperature of 87°F on August 31, 2026—well above the 80°F normal but below historical extremes like the 99°F record from 1953. A late-summer heat dome drove the warmth through southerly flow and elevated dew points, yet daytime showers, thunderstorms, and cloud cover limited further intensification. This aligns directly with the market-implied 86-87°F outcome at near-certainty. Resolution could shift only in the unlikely event of station-specific data revisions or alternative measurement protocols overriding the official report.
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 31 Aug '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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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 which 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 can not resolve until the first data point for the following date has been published on the resolution source.
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.
Volume
$95,933Petsa ng Pagtatapos
Aug 31, 2026Binuksan ang Market
Aug 29, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...Na-propose ang outcome: No
Walang dispute
Pinal na outcome: No
Official National Weather Service observations from Chicago-O'Hare, the primary reference station, recorded a maximum temperature of 87°F on August 31, 2026—well above the 80°F normal but below historical extremes like the 99°F record from 1953. A late-summer heat dome drove the warmth through southerly flow and elevated dew points, yet daytime showers, thunderstorms, and cloud cover limited further intensification. This aligns directly with the market-implied 86-87°F outcome at near-certainty. Resolution could shift only in the unlikely event of station-specific data revisions or alternative measurement protocols overriding the official report.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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