TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 18, 1:00 AM EST
Kalshi
This event forecasts the highest temperature in Boston on July 17, 2026. The outcome will be determined by the maximum temperature recorded at Boston Logan Airport, MA on that date according to the National Weather Service's official daily climatological report.
Resolution is based on the maximum temperature recorded at Boston (Logan Airport), MA on July 17, 2026, as reported in the National Weather Service's Climatological Report (Daily), accessible via the NWS Boston office website. The event is divided into six temperature bands: 81°F or below, 82-83°F, 84-85°F, 86-87°F, 88-89°F, and 90°F or above. Each band corresponds to a distinct outcome. The official NWS Climatological Report (Daily) is the authoritative source for resolution; preliminary NWS data and third-party weather services such as AccuWeather or Google Weather may be consulted for guidance but are not binding. Traders should be aware that preliminary NWS reporting and measurement methods may involve rounding and conversion nuances that could affect interpretation of borderline values.