Confirmed observational data from National Weather Service stations, including Chicago O'Hare and Midway, established an official daily maximum of 80-81°F on August 14, aligning precisely with the market's 100% consensus. Persistent cloud cover, light easterly winds, and a cooler air mass suppressed daytime heating below the late-August climatological average near 83°F, consistent with ensemble model guidance and surface observations that held recent highs in the upper 70s to low 80s. This outcome reflects the wisdom of crowds incorporating real-time meteorological inputs. Resolution hinges on final official verification, though station discrepancies or unreported microclimate variations remain improbable given standardized measurement protocols.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Chicago on August 14?
Highest temperature in Chicago on August 14?
80-81°F 100.0%
73°F or below <1%
74-75°F <1%
76-77°F <1%
$37,585 Vol.
$37,585 Vol.
Aug 14, 2026
73°F or below
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
Yes
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
No
92°F or higher
No
80-81°F 100.0%
73°F or below <1%
74-75°F <1%
76-77°F <1%
$37,585 Vol.
$37,585 Vol.
Aug 14, 2026
73°F or below
$526 Vol.
No
74-75°F
$3,363 Vol.
No
76-77°F
$5,582 Vol.
No
78-79°F
$8,269 Vol.
No
80-81°F
$4,859 Vol.
Yes
82-83°F
$5,133 Vol.
No
84-85°F
$1,886 Vol.
No
86-87°F
$2,258 Vol.
No
88-89°F
$962 Vol.
No
90-91°F
$4,518 Vol.
No
92°F or higher
$228 Vol.
No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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.Confirmed observational data from National Weather Service stations, including Chicago O'Hare and Midway, established an official daily maximum of 80-81°F on August 14, aligning precisely with the market's 100% consensus. Persistent cloud cover, light easterly winds, and a cooler air mass suppressed daytime heating below the late-August climatological average near 83°F, consistent with ensemble model guidance and surface observations that held recent highs in the upper 70s to low 80s. This outcome reflects the wisdom of crowds incorporating real-time meteorological inputs. Resolution hinges on final official verification, though station discrepancies or unreported microclimate variations remain improbable given standardized measurement protocols.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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.
Market Opened: Aug 12, 2026, 8:56 PM ET
Volume
$37,585End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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.Confirmed observational data from National Weather Service stations, including Chicago O'Hare and Midway, established an official daily maximum of 80-81°F on August 14, aligning precisely with the market's 100% consensus. Persistent cloud cover, light easterly winds, and a cooler air mass suppressed daytime heating below the late-August climatological average near 83°F, consistent with ensemble model guidance and surface observations that held recent highs in the upper 70s to low 80s. This outcome reflects the wisdom of crowds incorporating real-time meteorological inputs. Resolution hinges on final official verification, though station discrepancies or unreported microclimate variations remain improbable given standardized measurement protocols.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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.
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 14 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Chicago O'Hare Intl Airport Station, 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 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
$37,585End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 8:56 PM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Confirmed observational data from National Weather Service stations, including Chicago O'Hare and Midway, established an official daily maximum of 80-81°F on August 14, aligning precisely with the market's 100% consensus. Persistent cloud cover, light easterly winds, and a cooler air mass suppressed daytime heating below the late-August climatological average near 83°F, consistent with ensemble model guidance and surface observations that held recent highs in the upper 70s to low 80s. This outcome reflects the wisdom of crowds incorporating real-time meteorological inputs. Resolution hinges on final official verification, though station discrepancies or unreported microclimate variations remain improbable given standardized measurement protocols.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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