TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 28, 1:59 AM EST
Kalshi
This event tracks the peak temperature in Chicago on a specific summer day in 2026, using official government data as the definitive source. Participants assess likelihoods based on historical trends, seasonal patterns, and long-range forecasts. The outcome hinges solely on the exact temperature reading reported after the event.
All markets resolve based exclusively on the highest temperature recorded at Chicago Midway, IL on July 27, 2026, as reported in the National Weather Service's official Climatological Report (Daily). Each market corresponds to a specific temperature range: 89° or below, 90-91°, 92-93°, 94-95°, 96-97°, or 98° and above. The market associated with the actual reported temperature range will resolve as Yes, with all others resolving as No. Traders must recognize that preliminary or third-party weather data may differ from the official NWS report due to rounding, conversion, or reporting nuances, and should rely only on the final NWS documentation for resolution.