Northeast winds of 15–25 mph and persistent cloud cover from a departing frontal system are capping daytime heating in Chicago, keeping the September 20 maximum temperature tightly contested between the 68–69 °F and 70–71 °F bins that together command nearly 90 % of market-implied probability. National Weather Service guidance and ensemble model runs converge on a high near 70 °F under mostly cloudy skies and a 60 % chance of showers, with stronger onshore flow off Lake Michigan enhancing mixing and limiting insolation. Recent heavy rainfall on the 19th has left a cooler, moister boundary layer, while historical September 20 averages near 74 °F underscore how atypical the current pattern is. Traders are monitoring the next model cycle and any revisions to the official forecast for clues on whether marginal clearing could push readings into the low 70s or whether sustained cloud and wind keep the peak in the upper 60s.
基于Polymarket数据的AI实验性摘要。这不是交易建议，也不影响该市场的结算方式。 · 更新于9月20日芝加哥气温最高？
9月20日芝加哥气温最高？
68-69°F 47%
70-71°F 43%
66-67华氏度 7%
72-73°F 7%
最新
最新
2026-09-20
59°F或以下
<1%
60-61°F
<1%
62-63°F
<1%
64-65°F
2%
66-67华氏度
7%
68-69°F
47%
70-71°F
43%
72-73°F
7%
74-75°F
1%
76-77°F
<1%
78华氏度或更高
<1%
68-69°F 47%
70-71°F 43%
66-67华氏度 7%
72-73°F 7%
最新
最新
2026-09-20
59°F或以下
$111 交易量
<1%
60-61°F
$111 交易量
<1%
62-63°F
$213 交易量
<1%
64-65°F
$120 交易量
2%
66-67华氏度
$839 交易量
7%
68-69°F
$1,652 交易量
47%
70-71°F
$1,037 交易量
43%
72-73°F
$891 交易量
7%
74-75°F
$483 交易量
1%
76-77°F
$279 交易量
<1%
78华氏度或更高
$121 交易量
<1%
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 20 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.Northeast winds of 15–25 mph and persistent cloud cover from a departing frontal system are capping daytime heating in Chicago, keeping the September 20 maximum temperature tightly contested between the 68–69 °F and 70–71 °F bins that together command nearly 90 % of market-implied probability. National Weather Service guidance and ensemble model runs converge on a high near 70 °F under mostly cloudy skies and a 60 % chance of showers, with stronger onshore flow off Lake Michigan enhancing mixing and limiting insolation. Recent heavy rainfall on the 19th has left a cooler, moister boundary layer, while historical September 20 averages near 74 °F underscore how atypical the current pattern is. Traders are monitoring the next model cycle and any revisions to the official forecast for clues on whether marginal clearing could push readings into the low 70s or whether sustained cloud and wind keep the peak in the upper 60s.
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 20 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.
市场开放时间： Sep 18, 2026, 2:56 AM ET
交易量
$5,857结束日期
2026-09-20市场开放时间
Sep 18, 2026, 2:56 AM ETThis 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 20 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.Northeast winds of 15–25 mph and persistent cloud cover from a departing frontal system are capping daytime heating in Chicago, keeping the September 20 maximum temperature tightly contested between the 68–69 °F and 70–71 °F bins that together command nearly 90 % of market-implied probability. National Weather Service guidance and ensemble model runs converge on a high near 70 °F under mostly cloudy skies and a 60 % chance of showers, with stronger onshore flow off Lake Michigan enhancing mixing and limiting insolation. Recent heavy rainfall on the 19th has left a cooler, moister boundary layer, while historical September 20 averages near 74 °F underscore how atypical the current pattern is. Traders are monitoring the next model cycle and any revisions to the official forecast for clues on whether marginal clearing could push readings into the low 70s or whether sustained cloud and wind keep the peak in the upper 60s.
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 20 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.
交易量
$5,857结束日期
2026-09-20市场开放时间
Sep 18, 2026, 2:56 AM ETNortheast winds of 15–25 mph and persistent cloud cover from a departing frontal system are capping daytime heating in Chicago, keeping the September 20 maximum temperature tightly contested between the 68–69 °F and 70–71 °F bins that together command nearly 90 % of market-implied probability. National Weather Service guidance and ensemble model runs converge on a high near 70 °F under mostly cloudy skies and a 60 % chance of showers, with stronger onshore flow off Lake Michigan enhancing mixing and limiting insolation. Recent heavy rainfall on the 19th has left a cooler, moister boundary layer, while historical September 20 averages near 74 °F underscore how atypical the current pattern is. Traders are monitoring the next model cycle and any revisions to the official forecast for clues on whether marginal clearing could push readings into the low 70s or whether sustained cloud and wind keep the peak in the upper 60s.
基于Polymarket数据的AI实验性摘要。这不是交易建议，也不影响该市场的结算方式。 · 更新于
警惕外部链接哦。
警惕外部链接哦。
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