**Northeast winds and lake moderation are anchoring the market's strong preference for a 76–79°F high in Chicago on September 6.** Official forecasts from WeatherBug, WillyWeather, and local NWS guidance show highs in the upper 70s under partly cloudy skies, with northeast flow at 5–10 mph limiting inland warming and keeping lake-adjacent areas cooler. This follows several days of 90s+ readings that have given way to a cooler, more stable pattern. The implied probabilities align closely with model consensus around 76–78°F, reflecting the limited upside from the current steering pattern and absence of stronger southerly flow or clear-sky heating. Historical September 6 averages near 80°F provide context, but the fresh northeast regime has shifted trader sentiment toward the lower end of the typical range ahead of tomorrow’s final observations.
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 September 6?
Highest temperature in Chicago on September 6?
78-79°F 55%
76-77°F 31%
80-81°F 11%
74-75°F 4%
NEW
NEW
Sep 6, 2026
71°F or below
1%
72-73°F
2%
74-75°F
4%
76-77°F
31%
78-79°F
55%
80-81°F
11%
82-83°F
2%
84-85°F
2%
86-87°F
<1%
88-89°F
<1%
90°F or higher
<1%
78-79°F 55%
76-77°F 31%
80-81°F 11%
74-75°F 4%
NEW
NEW
Sep 6, 2026
71°F or below
$368 Vol.
1%
72-73°F
$277 Vol.
2%
74-75°F
$456 Vol.
4%
76-77°F
$308 Vol.
31%
78-79°F
$1,868 Vol.
55%
80-81°F
$679 Vol.
11%
82-83°F
$220 Vol.
2%
84-85°F
$633 Vol.
2%
86-87°F
$289 Vol.
<1%
88-89°F
$225 Vol.
<1%
90°F or higher
$431 Vol.
<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 6 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 and lake moderation are anchoring the market's strong preference for a 76–79°F high in Chicago on September 6.** Official forecasts from WeatherBug, WillyWeather, and local NWS guidance show highs in the upper 70s under partly cloudy skies, with northeast flow at 5–10 mph limiting inland warming and keeping lake-adjacent areas cooler. This follows several days of 90s+ readings that have given way to a cooler, more stable pattern. The implied probabilities align closely with model consensus around 76–78°F, reflecting the limited upside from the current steering pattern and absence of stronger southerly flow or clear-sky heating. Historical September 6 averages near 80°F provide context, but the fresh northeast regime has shifted trader sentiment toward the lower end of the typical range ahead of tomorrow’s final observations.
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 6 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.
Market Opened: Sep 4, 2026, 2:56 AM ET
Volume
$5,752End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...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 6 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 and lake moderation are anchoring the market's strong preference for a 76–79°F high in Chicago on September 6.** Official forecasts from WeatherBug, WillyWeather, and local NWS guidance show highs in the upper 70s under partly cloudy skies, with northeast flow at 5–10 mph limiting inland warming and keeping lake-adjacent areas cooler. This follows several days of 90s+ readings that have given way to a cooler, more stable pattern. The implied probabilities align closely with model consensus around 76–78°F, reflecting the limited upside from the current steering pattern and absence of stronger southerly flow or clear-sky heating. Historical September 6 averages near 80°F provide context, but the fresh northeast regime has shifted trader sentiment toward the lower end of the typical range ahead of tomorrow’s final observations.
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 6 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.
Volume
$5,752End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...**Northeast winds and lake moderation are anchoring the market's strong preference for a 76–79°F high in Chicago on September 6.** Official forecasts from WeatherBug, WillyWeather, and local NWS guidance show highs in the upper 70s under partly cloudy skies, with northeast flow at 5–10 mph limiting inland warming and keeping lake-adjacent areas cooler. This follows several days of 90s+ readings that have given way to a cooler, more stable pattern. The implied probabilities align closely with model consensus around 76–78°F, reflecting the limited upside from the current steering pattern and absence of stronger southerly flow or clear-sky heating. Historical September 6 averages near 80°F provide context, but the fresh northeast regime has shifted trader sentiment toward the lower end of the typical range ahead of tomorrow’s final observations.
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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