TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 18, 2:00 AM EST
Kalshi
This event tracks the highest temperature reached in Chicago on a specific date in the future, using data from a designated weather provider. Participants can speculate on whether temperatures will fall within certain ranges, helping to gauge expected weather conditions for that day.
The event determines whether the maximum temperature in Chicago on September 17, 2026, as recorded by The Weather Company, falls within specific Fahrenheit ranges. Each market corresponds to a temperature band, with one market resolving if temperatures exceed the highest threshold. All outcomes rely exclusively on The Weather Company's official reporting, even if other sources show different data. Preliminary readings may vary due to rounding or conversion issues, and the Exchange reserves the right to delay resolution if it identifies material errors in the initial data release. If unresolved data remains unavailable by the expiration date, markets settle at the last fair price determined by the Exchange. The 'Final' status on The Weather Company's platform is informational and does not guarantee error-free data.