Highest temperature in Chicago on Oct 20, 2026?

Kalshi

The event resolves based on the maximum temperature recorded in Chicago (CLIMDW) on October 20, 2026, as reported by The Weather Company. Six distinct temperature ranges are defined, each corresponding to a separate market that will resolve to 'Yes' if the actual temperature falls within that range. All markets share identical secondary rules regarding data verification and error handling. The Weather Company’s data is the sole authority, even if other sources report different values. Preliminary data may be subject to rounding or conversion differences, so users should exercise caution. If the Exchange identifies a material error in the initially published data, it may delay expiration until a corrected version is released or until the official expiration date, whichever comes first. If no reliable 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 The Weather Company’s platform is for convenience only and does not guarantee immunity from data errors or subsequent corrections.