Highest temperature in Chicago on Sep 23, 2026?

Kalshi

The event determines whether the maximum temperature in Chicago on September 23, 2026, as recorded by The Weather Company, falls within specific degree ranges. Each market corresponds to a temperature band, and the market resolves to 'Yes' if the recorded high temperature matches that band's criteria. All markets share common secondary rules regarding data reliability: preliminary readings may vary due to rounding or conversion issues, and The Weather Company’s final reported value is the official benchmark. If the Exchange identifies a material error in the initially published data, it may delay resolution until a corrected version is released or until the expiration date. Should no data remain available by the expiration date, markets resolve to the last fair price established by Kalshi. The 'Final' status on The Weather Company’s platform is informational and does not guarantee error-free data, meaning markets can still be subject to revision under the above error-resolution procedures.