TOTAL VOLUME:
$154.6b
24H VOL:
$323,326,361
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,969,435,260
419,363
Markets across
40,411
events
MATCHED EVENTS:
4,612
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 28, 3:00 AM EST
Kalshi
This set of markets focuses on predicting the highest temperature that will be recorded in Phoenix on a specific date in the future. The outcome depends entirely on official weather data from a designated source, reflecting anticipated climate conditions for that day.
All markets resolve based on the maximum temperature recorded at Phoenix (CLIPHX) on October 27, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 82°F or below, 83-84°F, 85-86°F, 87-88°F, 89-90°F, or above 90°F. The official data from The Weather Company is the sole determinant, even if other weather services report different values. Preliminary data may be subject to rounding or conversion differences, and users should exercise caution when interpreting it. If the Exchange identifies a material error in the initial non-preliminary data publication, it may delay expiration until a corrected version is released or until the expiration date, whichever comes first. If no data remains available by the end of this period, all markets will resolve to the last fair price determined by Kalshi. The "Final" status on weather.com/kalshi is provided for convenience but does not guarantee data accuracy or exempt markets from potential revisions under these rules.