**Current NWS and private forecast models converge on a daytime high in the mid to upper 70s for Chicago on August 24, 2026, under sunny to partly cloudy skies.** Northwesterly flow advects cooler continental air while Lake Michigan’s lake breeze and thermal moderation cap inland warming, keeping readings well below the 81.9 °F late-August climatological average. Morning observations near 61 °F and light winds support limited afternoon mixing, with most guidance clustering between 73–79 °F and minimal precipitation risk. Trader positioning favoring the 76–79 °F bins reflects this consensus and the narrow uncertainty range typical for a stable, post-frontal summer day. Updated model runs and lake-breeze timing remain the key variables that could shift the final observed high within the resolution bins.
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 24?
Highest temperature in Chicago on August 24?
76-77°F 63%
78-79°F 34%
74-75°F 4%
80-81°F 3%
NEW
$10,602 Vol.
NEW
$10,602 Vol.
Aug 24, 2026
69°F or below
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
4%
76-77°F
63%
78-79°F
34%
80-81°F
3%
82-83°F
<1%
84-85°F
<1%
86-87°F
<1%
88°F or higher
<1%
76-77°F 63%
78-79°F 34%
74-75°F 4%
80-81°F 3%
NEW
$10,602 Vol.
NEW
$10,602 Vol.
Aug 24, 2026
69°F or below
$185 Vol.
<1%
70-71°F
$337 Vol.
<1%
72-73°F
$1,312 Vol.
<1%
74-75°F
$1,284 Vol.
4%
76-77°F
$2,789 Vol.
63%
78-79°F
$1,882 Vol.
34%
80-81°F
$1,110 Vol.
3%
82-83°F
$694 Vol.
<1%
84-85°F
$320 Vol.
<1%
86-87°F
$334 Vol.
<1%
88°F or higher
$354 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 24 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.**Current NWS and private forecast models converge on a daytime high in the mid to upper 70s for Chicago on August 24, 2026, under sunny to partly cloudy skies.** Northwesterly flow advects cooler continental air while Lake Michigan’s lake breeze and thermal moderation cap inland warming, keeping readings well below the 81.9 °F late-August climatological average. Morning observations near 61 °F and light winds support limited afternoon mixing, with most guidance clustering between 73–79 °F and minimal precipitation risk. Trader positioning favoring the 76–79 °F bins reflects this consensus and the narrow uncertainty range typical for a stable, post-frontal summer day. Updated model runs and lake-breeze timing remain the key variables that could shift the final observed high within the resolution bins.
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 24 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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 22, 2026, 8:56 PM ET
Volume
$10,602End Date
Aug 24, 2026Market Opened
Aug 22, 2026, 8:56 PM 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 24 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.**Current NWS and private forecast models converge on a daytime high in the mid to upper 70s for Chicago on August 24, 2026, under sunny to partly cloudy skies.** Northwesterly flow advects cooler continental air while Lake Michigan’s lake breeze and thermal moderation cap inland warming, keeping readings well below the 81.9 °F late-August climatological average. Morning observations near 61 °F and light winds support limited afternoon mixing, with most guidance clustering between 73–79 °F and minimal precipitation risk. Trader positioning favoring the 76–79 °F bins reflects this consensus and the narrow uncertainty range typical for a stable, post-frontal summer day. Updated model runs and lake-breeze timing remain the key variables that could shift the final observed high within the resolution bins.
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 24 Aug '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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
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
$10,602End Date
Aug 24, 2026Market Opened
Aug 22, 2026, 8:56 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kordResolver
0x69c47De9D...**Current NWS and private forecast models converge on a daytime high in the mid to upper 70s for Chicago on August 24, 2026, under sunny to partly cloudy skies.** Northwesterly flow advects cooler continental air while Lake Michigan’s lake breeze and thermal moderation cap inland warming, keeping readings well below the 81.9 °F late-August climatological average. Morning observations near 61 °F and light winds support limited afternoon mixing, with most guidance clustering between 73–79 °F and minimal precipitation risk. Trader positioning favoring the 76–79 °F bins reflects this consensus and the narrow uncertainty range typical for a stable, post-frontal summer day. Updated model runs and lake-breeze timing remain the key variables that could shift the final observed high within the resolution bins.
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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