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: Aug 17, 2:00 AM EST
Kalshi
For Chicago on August 16, 2026, the event evaluates the day's peak temperature across six brackets, from under 82°F to over 89°F. The official weather service's data will decide which bracket applies.
The outcome is determined by the maximum temperature recorded at Chicago (CLIMDW) on August 16, 2026, as reported by The Weather Company. Six temperature ranges are established: 81°F or below, 82-83°F, 84-85°F, 86-87°F, 88-89°F, and 90°F or above. The market matching the recorded temperature range resolves to Yes. The Weather Company provides the definitive temperature data, and all resolutions rely exclusively on their reported values, regardless of conflicting information from other weather sources.