Recent National Weather Service guidance and model consensus point to a below-normal high in Chicago on August 20, 2026, driven by northerly flow behind a cold front and mostly sunny conditions that limit daytime heating. With climatological normals near 82°F, current forecasts cluster in the mid-to-upper 70s (NWS explicitly calling for 76°F), reflecting a continuation of the cool pattern observed through mid-August. Light winds and modest dew points further cap temperatures, reducing the chance of reaching the low 80s. Market-implied odds favoring 78–79°F (45%) and 80–81°F (31%) align with this consensus while assigning lower weight to warmer outliers, as traders incorporate the latest model runs and the absence of strong southerly advection or subsidence that could boost readings. Upcoming NWS updates and morning soundings will refine the exact maximum before resolution.
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 20. August?
Höchste Temperatur in Chicago am 20. August?
78-79°F 44%
80-81°F 31%
76-77°F 15%
82-83°F 7%
NEU
NEU
20. Aug. 2026
69°F oder weniger
<1%
21-22°C
1%
72-73°F
1%
74-75°F
3%
76-77°F
15%
78-79°F
44%
80-81°F
31%
82-83°F
7%
84-85°F
2%
86-87°F
1%
88°F oder höher
1%
78-79°F 44%
80-81°F 31%
76-77°F 15%
82-83°F 7%
NEU
NEU
20. Aug. 2026
69°F oder weniger
$30 Vol.
<1%
21-22°C
$40 Vol.
1%
72-73°F
$50 Vol.
1%
74-75°F
$57 Vol.
3%
76-77°F
$58 Vol.
15%
78-79°F
$292 Vol.
44%
80-81°F
$402 Vol.
31%
82-83°F
$101 Vol.
7%
84-85°F
$33 Vol.
2%
86-87°F
$50 Vol.
1%
88°F oder höher
$50 Vol.
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 20 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.Recent National Weather Service guidance and model consensus point to a below-normal high in Chicago on August 20, 2026, driven by northerly flow behind a cold front and mostly sunny conditions that limit daytime heating. With climatological normals near 82°F, current forecasts cluster in the mid-to-upper 70s (NWS explicitly calling for 76°F), reflecting a continuation of the cool pattern observed through mid-August. Light winds and modest dew points further cap temperatures, reducing the chance of reaching the low 80s. Market-implied odds favoring 78–79°F (45%) and 80–81°F (31%) align with this consensus while assigning lower weight to warmer outliers, as traders incorporate the latest model runs and the absence of strong southerly advection or subsidence that could boost readings. Upcoming NWS updates and morning soundings will refine the exact maximum before resolution.
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 20 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 20 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.
Markt eröffnet: Aug 18, 2026, 9:56 PM ET
Volumen
$1,163Enddatum
20. Aug. 2026Markt eröffnet
Aug 18, 2026, 9:56 PM ETAbwicklungsquelle
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 20 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.Recent National Weather Service guidance and model consensus point to a below-normal high in Chicago on August 20, 2026, driven by northerly flow behind a cold front and mostly sunny conditions that limit daytime heating. With climatological normals near 82°F, current forecasts cluster in the mid-to-upper 70s (NWS explicitly calling for 76°F), reflecting a continuation of the cool pattern observed through mid-August. Light winds and modest dew points further cap temperatures, reducing the chance of reaching the low 80s. Market-implied odds favoring 78–79°F (45%) and 80–81°F (31%) align with this consensus while assigning lower weight to warmer outliers, as traders incorporate the latest model runs and the absence of strong southerly advection or subsidence that could boost readings. Upcoming NWS updates and morning soundings will refine the exact maximum before resolution.
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 20 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 20 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.
Volumen
$1,163Enddatum
20. Aug. 2026Markt eröffnet
Aug 18, 2026, 9:56 PM ETAbwicklungsquelle
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Recent National Weather Service guidance and model consensus point to a below-normal high in Chicago on August 20, 2026, driven by northerly flow behind a cold front and mostly sunny conditions that limit daytime heating. With climatological normals near 82°F, current forecasts cluster in the mid-to-upper 70s (NWS explicitly calling for 76°F), reflecting a continuation of the cool pattern observed through mid-August. Light winds and modest dew points further cap temperatures, reducing the chance of reaching the low 80s. Market-implied odds favoring 78–79°F (45%) and 80–81°F (31%) align with this consensus while assigning lower weight to warmer outliers, as traders incorporate the latest model runs and the absence of strong southerly advection or subsidence that could boost readings. Upcoming NWS updates and morning soundings will refine the exact maximum before resolution.
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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