Highest temperature in Chicago on Oct 31, 2026?

Kalshi

All markets resolve based on the maximum temperature recorded in Chicago (CLIMDW) on October 31, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 59° or below, 60-61°, 62-63°, 64-65°, 66-67°, or 68° and above. The Exchange reserves the right to delay resolution if a material error is identified in the initial data publication, extending the evaluation until a corrected version is released or the expiration date arrives. If data remains unavailable by the expiration date, all markets will resolve to the last fair price determined by Kalshi. Preliminary readings may differ from final values due to rounding or conversion, so participants should exercise caution when interpreting early data. The 'Final' status on weather.com/kalshi is informational only and does not guarantee data accuracy or exempt markets from potential revisions.