Lowest temperature in Chicago on Sep 20, 2026?

Kalshi

All markets resolve based on the minimum temperature recorded at Chicago (CLIMDW) on September 20, 2026, as reported by The Weather Company. Each market corresponds to a specific temperature range: 57°F or below, 58-59°F, 60-61°F, 62-63°F, 64-65°F, or above 65°F. The Weather Company’s data is the sole authority, even if other sources report differently. Preliminary data may be subject to rounding or conversion discrepancies, so users should exercise caution. If the Exchange identifies a material error in the initial data publication, it may delay resolution until a corrected version is released or until the expiration date. If no data remains available by the expiration date, 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 error-free data.