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 22, 1:00 AM EST
Kalshi
The maximum temperature in Boston on August 21, 2026 will determine outcomes across six distinct temperature ranges, each resolving based on specific thresholds measured by The Weather Company.
Each market resolves based on the maximum temperature recorded at Boston (CLIBOS) on August 21, 2026, as reported by The Weather Company. Markets are divided into six temperature ranges: 74° or below, 75° to 76°, 77° to 78°, 79° to 80°, 81° to 82°, and 83° or above. The secondary rule emphasizes that while other weather sources may be referenced for guidance, The Weather Company’s data is the official and final determinant for all outcomes.