TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 7, 2:00 AM EST
Kalshi
This set of markets focuses on predicting the highest temperature that will be recorded in Chicago on a specific date in the future. Participants can bet on different temperature ranges, with each market resolving based on the official weather data from a designated source.
All markets resolve based on the maximum temperature recorded at Chicago (CLIMDW) on October 6, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: below 70°F, 70-71°F, 72-73°F, 74-75°F, 76-77°F, or above 77°F. The official data from The Weather Company is the sole determinant, and users should be aware that preliminary data may differ from the final reported value due to rounding or conversion issues. If a material error is identified in the initial publication, the Exchange reserves the right to delay expiration until a corrected version is released or until the expiration date, whichever comes first. In the event that no data is available by the expiration date, all markets will resolve to the last fair price determined by Kalshi. The 'Final' status on weather.com/kalshi is for convenience and does not guarantee error-free data.