Latest National Weather Service and ensemble model guidance points to a daily maximum temperature in Chicago on August 21 centered near 80°F, just below the 1991–2020 normal of 82.1°F, which underpins the strong market weighting toward the 80–81°F bin. A northwesterly flow is expected to limit peak heating, with afternoon cloud cover and a modest chance of isolated thunderstorms further capping temperatures in the upper 70s to low 80s. Recent model runs show minimal spread around this range, with only low-probability scenarios supporting 82°F or higher if skies clear earlier than anticipated. These conditions align with broader late-August cooling trends observed in recent days across the Midwest.
Експериментальне резюме, згенероване ШІ з посиланням на дані Polymarket. Це не торгова порада і не впливає на вирішення цього ринку. · ОновленоHighest temperature in Chicago on August 21?
Highest temperature in Chicago on August 21?
80-81°F 48%
78-79°F 27%
82-83°F 19%
84-85°F 6%
НОВЕ
НОВЕ
Aug 21, 2026
69°F or below
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
1%
76-77°F
5%
78-79°F
27%
80-81°F
48%
82-83°F
19%
84-85°F
6%
86-87°F
2%
88°F or higher
<1%
80-81°F 48%
78-79°F 27%
82-83°F 19%
84-85°F 6%
НОВЕ
НОВЕ
Aug 21, 2026
69°F or below
$262 Обс.
<1%
70-71°F
$198 Обс.
<1%
72-73°F
$262 Обс.
<1%
74-75°F
$93 Обс.
1%
76-77°F
$268 Обс.
5%
78-79°F
$274 Обс.
27%
80-81°F
$689 Обс.
48%
82-83°F
$220 Обс.
19%
84-85°F
$270 Обс.
6%
86-87°F
$75 Обс.
2%
88°F or higher
$120 Обс.
<1%
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 21 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.Latest National Weather Service and ensemble model guidance points to a daily maximum temperature in Chicago on August 21 centered near 80°F, just below the 1991–2020 normal of 82.1°F, which underpins the strong market weighting toward the 80–81°F bin. A northwesterly flow is expected to limit peak heating, with afternoon cloud cover and a modest chance of isolated thunderstorms further capping temperatures in the upper 70s to low 80s. Recent model runs show minimal spread around this range, with only low-probability scenarios supporting 82°F or higher if skies clear earlier than anticipated. These conditions align with broader late-August cooling trends observed in recent days across the Midwest.
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 21 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 21 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.
Ринок відкрито: Aug 19, 2026, 9:56 PM ET
Обсяг
$2,712Дата завершення
Aug 21, 2026Ринок відкрито
Aug 19, 2026, 9:56 PM ETДжерело вирішення
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...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 21 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.Latest National Weather Service and ensemble model guidance points to a daily maximum temperature in Chicago on August 21 centered near 80°F, just below the 1991–2020 normal of 82.1°F, which underpins the strong market weighting toward the 80–81°F bin. A northwesterly flow is expected to limit peak heating, with afternoon cloud cover and a modest chance of isolated thunderstorms further capping temperatures in the upper 70s to low 80s. Recent model runs show minimal spread around this range, with only low-probability scenarios supporting 82°F or higher if skies clear earlier than anticipated. These conditions align with broader late-August cooling trends observed in recent days across the Midwest.
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 21 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 21 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.
Обсяг
$2,712Дата завершення
Aug 21, 2026Ринок відкрито
Aug 19, 2026, 9:56 PM ETДжерело вирішення
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Latest National Weather Service and ensemble model guidance points to a daily maximum temperature in Chicago on August 21 centered near 80°F, just below the 1991–2020 normal of 82.1°F, which underpins the strong market weighting toward the 80–81°F bin. A northwesterly flow is expected to limit peak heating, with afternoon cloud cover and a modest chance of isolated thunderstorms further capping temperatures in the upper 70s to low 80s. Recent model runs show minimal spread around this range, with only low-probability scenarios supporting 82°F or higher if skies clear earlier than anticipated. These conditions align with broader late-August cooling trends observed in recent days across the Midwest.
Експериментальне резюме, згенероване ШІ з посиланням на дані Polymarket. Це не торгова порада і не впливає на вирішення цього ринку. · Оновлено
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