Recent National Weather Service model runs and ensemble guidance indicate that scattered thunderstorms and increased cloud cover following record heat on July 3–4 will limit daytime heating in Chicago on July 5, keeping official highs most likely in the upper 70s to low 80s. This pattern—marked by easterly flow and lingering moisture—explains why traders assign the highest implied probabilities (around 23% and 19%) to the 76–77 °F and 78–81 °F bins, while discounting normal climatology near 84 °F. Key resolution hinges on the highest temperature recorded at Chicago Midway Airport; afternoon convection timing and any breaks in cloud cover remain the primary uncertainties that could shift the outcome by a few degrees.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Chicago on July 5?
76-77°F 100%
71°F or below <1%
72-73°F <1%
74-75°F <1%
$84,905 Vol.
$84,905 Vol.
71°F or below
No
72-73°F
No
74-75°F
No
76-77°F
Yes
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90°F or higher
No
76-77°F 100%
71°F or below <1%
72-73°F <1%
74-75°F <1%
$84,905 Vol.
$84,905 Vol.
71°F or below
No
72-73°F
No
74-75°F
No
76-77°F
Yes
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90°F or higher
No
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.
Binuksan ang Market: Jul 3, 2026, 9:02 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Na-propose ang outcome: No
Walang dispute
Pinal na outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/us/il/chicago/KORDResolver
0x69c47De9D...Na-propose ang outcome: No
Walang dispute
Pinal na outcome: No
Recent National Weather Service model runs and ensemble guidance indicate that scattered thunderstorms and increased cloud cover following record heat on July 3–4 will limit daytime heating in Chicago on July 5, keeping official highs most likely in the upper 70s to low 80s. This pattern—marked by easterly flow and lingering moisture—explains why traders assign the highest implied probabilities (around 23% and 19%) to the 76–77 °F and 78–81 °F bins, while discounting normal climatology near 84 °F. Key resolution hinges on the highest temperature recorded at Chicago Midway Airport; afternoon convection timing and any breaks in cloud cover remain the primary uncertainties that could shift the outcome by a few degrees.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update

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