Highest temperature in Boston on Oct 31, 2026?

Kalshi

The event determines the outcome based on the maximum temperature recorded in Boston (CLIBOS) on October 31, 2026, as reported by The Weather Company. Six separate temperature ranges are defined, each corresponding to a specific market outcome. If the recorded temperature falls within any of these ranges, the associated market resolves to Yes; otherwise, it resolves to No. All markets share common secondary rules regarding data verification and error handling. The Weather Company’s data is the sole authority, and preliminary readings may differ from final values due to rounding or conversion. If a material error is identified in the initial publication before the expiration date, the exchange may delay resolution until a corrected value is released or until the expiration date arrives. Should no data be available by the expiration date, all markets resolve to the last fair price determined by Kalshi. The status of "Final" on weather.com/kalshi is informational and does not exempt the data from potential error correction under these rules.