Lowest temperature in Chicago on Oct 31, 2026?

Kalshi

All markets resolve based on the minimum temperature recorded at Chicago's CLIMDW station on October 31, 2026, as reported by The Weather Company. Each outcome corresponds to a specific temperature range: 45° or below, 46-47°, 48-49°, 50-51°, 52-53°, or above 53° Fahrenheit. The Weather Company serves as the sole source for official temperature data. Participants should be aware that preliminary data may contain rounding or conversion discrepancies compared to the final reported value. If the Exchange identifies a material error in the initial non-preliminary data publication, it may delay expiration until a corrected revision is issued or until the expiration date, whichever occurs first. Should no data remain available by the expiration period's end, all markets resolve to the last fair price established 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.