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 20, 2:00 AM EST
Kalshi
This event tracks the actual peak temperature in Chicago on a specific summer day in 2026. The outcome depends entirely on how hot it gets, with different ranges determining success. All calculations use a single authoritative weather source for consistency.
The event resolves based on the maximum temperature recorded at Chicago’s CLIMDW station on August 19, 2026, as reported by The Weather Company. Six distinct temperature ranges define resolution: below 74°F, 74–75°F, 76–77°F, 78–79°F, 80–81°F, or above 81°F. whichever range the official reading falls into determines the resolving market. While other weather services may show different values, The Weather Company’s report is the sole authority for all outcomes. This structure ensures an objective, source-backed determination of Chicago’s weather performance on that day.