Recent National Weather Service and model guidance point to a Chicago high temperature on July 9 near the seasonal normal of 84–85 °F, with the market’s narrow spread between the 82–83 °F and 84–85 °F brackets reflecting modest uncertainty in afternoon cloud cover, boundary-layer moisture, and the precise strength of northwest flow. Light winds and surface high pressure should limit mixing, while dew points in the mid-60s will moderate peak readings; any increase in insolation or drier air could push the maximum into the upper 80s, whereas lingering stratus or a slightly stronger gradient would cap it in the low 80s. Traders are weighting the latest deterministic and ensemble runs that keep the city just below the July climatological average.
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 July 9?
Highest temperature in Chicago on July 9?
84-85°F 38%
82-83°F 31%
86-87°F 17%
80-81°F 7%
NEW
NEW
Jul 9, 2026
75°F or below
1%
76-77°F
1%
78-79°F
3%
80-81°F
7%
82-83°F
31%
84-85°F
38%
86-87°F
17%
88-89°F
3%
90-91°F
1%
92-93°F
1%
94°F or higher
<1%
84-85°F 38%
82-83°F 31%
86-87°F 17%
80-81°F 7%
NEW
NEW
Jul 9, 2026
75°F or below
$241 Vol.
1%
76-77°F
$213 Vol.
1%
78-79°F
$118 Vol.
3%
80-81°F
$282 Vol.
7%
82-83°F
$216 Vol.
31%
84-85°F
$239 Vol.
38%
86-87°F
$34 Vol.
17%
88-89°F
$203 Vol.
3%
90-91°F
$45 Vol.
1%
92-93°F
$10 Vol.
1%
94°F or higher
$932 Vol.
<1%
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 9 Jul '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 and model guidance point to a Chicago high temperature on July 9 near the seasonal normal of 84–85 °F, with the market’s narrow spread between the 82–83 °F and 84–85 °F brackets reflecting modest uncertainty in afternoon cloud cover, boundary-layer moisture, and the precise strength of northwest flow. Light winds and surface high pressure should limit mixing, while dew points in the mid-60s will moderate peak readings; any increase in insolation or drier air could push the maximum into the upper 80s, whereas lingering stratus or a slightly stronger gradient would cap it in the low 80s. Traders are weighting the latest deterministic and ensemble runs that keep the city just below the July climatological average.
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 9 Jul '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.
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.
Market Opened: Jul 7, 2026, 10:02 PM ET
Volume
$2,532End Date
Jul 9, 2026Market Opened
Jul 7, 2026, 10:02 PM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...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 9 Jul '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 and model guidance point to a Chicago high temperature on July 9 near the seasonal normal of 84–85 °F, with the market’s narrow spread between the 82–83 °F and 84–85 °F brackets reflecting modest uncertainty in afternoon cloud cover, boundary-layer moisture, and the precise strength of northwest flow. Light winds and surface high pressure should limit mixing, while dew points in the mid-60s will moderate peak readings; any increase in insolation or drier air could push the maximum into the upper 80s, whereas lingering stratus or a slightly stronger gradient would cap it in the low 80s. Traders are weighting the latest deterministic and ensemble runs that keep the city just below the July climatological average.
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 9 Jul '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.
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.
Volume
$2,532End Date
Jul 9, 2026Market Opened
Jul 7, 2026, 10:02 PM ETResolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Recent National Weather Service and model guidance point to a Chicago high temperature on July 9 near the seasonal normal of 84–85 °F, with the market’s narrow spread between the 82–83 °F and 84–85 °F brackets reflecting modest uncertainty in afternoon cloud cover, boundary-layer moisture, and the precise strength of northwest flow. Light winds and surface high pressure should limit mixing, while dew points in the mid-60s will moderate peak readings; any increase in insolation or drier air could push the maximum into the upper 80s, whereas lingering stratus or a slightly stronger gradient would cap it in the low 80s. Traders are weighting the latest deterministic and ensemble runs that keep the city just below the July climatological average.
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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