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: Aug 11, 1:59 AM EST
Kalshi
This event tracks the actual peak temperature in Chicago on a specific future date, 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 temperature recorded at a designated weather station on that exact day.
All markets resolve based exclusively on the highest temperature recorded at Chicago Midway, IL on August 10, 2026, as reported in the National Weather Service's official Climatological Report (Daily). Each market corresponds to a specific temperature range: 81° or below, 82-83°, 84-85°, 86-87°, 88-89°, or 90° and above. If the recorded temperature falls within a market's defined range, that market resolves to Yes; all others resolve to No. Traders must rely solely on the NWS report for resolution, as preliminary or third-party data may differ due to rounding, conversion, or methodology variances. Caution is advised when interpreting early or unofficial data, since only the final NWS figure determines the outcome.