TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 26, 12:59 AM EST
Kalshi
This event tracks the peak temperature in Philadelphia on a specific summer day in 2026. The outcome depends on how hot it gets, with different ranges determining success. Official data from the National Weather Service will be the sole source for verification.
The event resolves based on the highest temperature recorded at Philadelphia International Airport on July 25, 2026, as officially reported by the National Weather Service's Climatological Report (Daily). Six distinct temperature ranges are defined, each corresponding to a separate market outcome. If the recorded high falls within any of these ranges — from 82°F or below up to 91°F or above — the associated market resolves to Yes. All markets rely exclusively on the NWS report for final determination, with preliminary or third-party data serving only as informal reference. Traders must recognize that NWS measurement and rounding conventions could affect interpretations of borderline values, and only the agency's official daily climatological report will serve as the binding authority for resolution.