Highest temperature in Chicago on Sep 11, 2026?

Kalshi

The event resolves based on the maximum temperature recorded in Chicago (CLIMDW) on September 11, 2026, as reported by The Weather Company. Six separate markets cover distinct temperature ranges: 75°F or below, 76°F to 77°F, 78°F to 79°F, 80°F to 81°F, 82°F to 83°F, and 84°F or above. Each market resolves to 'Yes' if the recorded temperature falls within its specified range. All markets share common secondary rules regarding data verification and error handling. Preliminary data may be subject to rounding or conversion differences, and The Weather Company’s final reported value is the official determinant. If a material error is identified in the initial publication before the expiration date, the exchange may delay resolution until a corrected value is published or until the expiration date arrives. If no valid data exists at expiration, all markets resolve to the last fair price determined by Kalshi. The 'Final' status on The Weather Company’s platform is informational only and does not guarantee data accuracy or exempt the event from these error-resolution procedures.