Recent National Weather Service and model guidance point to a building ridge of high pressure and southerly flow advecting warmer air into the Chicago area, positioning 96–97 °F as the most probable daily maximum at official stations. Ensemble forecasts cluster in the mid- to upper-90s, with modest spread arising from uncertainties in cloud cover, boundary-layer mixing, and exact wind speeds on the 15th. Historical July normals near 85 °F underscore the anomalous warmth, while the tight clustering of market-implied odds between 94–99 °F reflects trader assessment of these short-range model differences and the limited time remaining before observations finalize the outcome.
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 15?
Highest temperature in Chicago on July 15?
96-97°F 47%
98-99°F 25%
94-95°F 19%
100-101°F 9%
NEW
$10,998 Vol.
NEW
$10,998 Vol.
Jul 15, 2026
89°F or below
<1%
90-91°F
1%
92-93°F
2%
94-95°F
19%
96-97°F
47%
98-99°F
25%
100-101°F
9%
102-103°F
2%
104-105°F
1%
106-107°F
<1%
108°F or higher
<1%
96-97°F 47%
98-99°F 25%
94-95°F 19%
100-101°F 9%
NEW
$10,998 Vol.
NEW
$10,998 Vol.
Jul 15, 2026
89°F or below
$681 Vol.
<1%
90-91°F
$243 Vol.
1%
92-93°F
$603 Vol.
2%
94-95°F
$927 Vol.
19%
96-97°F
$6,970 Vol.
47%
98-99°F
$247 Vol.
25%
100-101°F
$241 Vol.
9%
102-103°F
$199 Vol.
2%
104-105°F
$319 Vol.
1%
106-107°F
$380 Vol.
<1%
108°F or higher
$199 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 15 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 building ridge of high pressure and southerly flow advecting warmer air into the Chicago area, positioning 96–97 °F as the most probable daily maximum at official stations. Ensemble forecasts cluster in the mid- to upper-90s, with modest spread arising from uncertainties in cloud cover, boundary-layer mixing, and exact wind speeds on the 15th. Historical July normals near 85 °F underscore the anomalous warmth, while the tight clustering of market-implied odds between 94–99 °F reflects trader assessment of these short-range model differences and the limited time remaining before observations finalize the outcome.
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 15 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 13, 2026, 10:02 PM ET
Volume
$10,998End Date
Jul 15, 2026Market Opened
Jul 13, 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 15 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 building ridge of high pressure and southerly flow advecting warmer air into the Chicago area, positioning 96–97 °F as the most probable daily maximum at official stations. Ensemble forecasts cluster in the mid- to upper-90s, with modest spread arising from uncertainties in cloud cover, boundary-layer mixing, and exact wind speeds on the 15th. Historical July normals near 85 °F underscore the anomalous warmth, while the tight clustering of market-implied odds between 94–99 °F reflects trader assessment of these short-range model differences and the limited time remaining before observations finalize the outcome.
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 15 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
$10,998End Date
Jul 15, 2026Market Opened
Jul 13, 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 building ridge of high pressure and southerly flow advecting warmer air into the Chicago area, positioning 96–97 °F as the most probable daily maximum at official stations. Ensemble forecasts cluster in the mid- to upper-90s, with modest spread arising from uncertainties in cloud cover, boundary-layer mixing, and exact wind speeds on the 15th. Historical July normals near 85 °F underscore the anomalous warmth, while the tight clustering of market-implied odds between 94–99 °F reflects trader assessment of these short-range model differences and the limited time remaining before observations finalize the outcome.
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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