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 22, 2:00 AM EST
Kalshi
This event tracks the maximum temperature expected in Chicago on a specific date in the future. The outcome depends on how warm it gets, with different markets covering various temperature ranges. The official data source determines the final result.
All markets resolve based on the maximum temperature recorded at Chicago (CLIMDW) on September 21, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 62°F or below, 63-64°F, 65-66°F, 67-68°F, 69-70°F, or above 70°F. The Exchange may delay resolution if a material error is identified in the initial data publication, allowing time for a corrected revision. If no data remains available by the expiration date, markets resolve to the last fair price determined by Kalshi. Preliminary data may differ from final values due to rounding or conversion, and the 'Final' status on weather.com/kalshi is informational only and does not guarantee error-free data.