Highest temperature in Chicago on August 18, 2026?

This market will resolve based on the highest temperature recorded at Chicago-Midway, IL on August 18, 2026. The resolution source for this market will be the National Weather Service ("NWS") Climatological Report (Daily) for Chicago-Midway, IL. Specifically, this contract will resolve to Yes if the highest temperature recorded at Chicago-Midway on August 18, 2026, as reported in the first published version of the applicable NWS Climatological Report (Daily), satisfies the temperature range specified in this contract. Otherwise, this contract will resolve to No. The Expiration Value shall be the maximum temperature for August 18, 2026 as documented by the NWS. If the Expiration Value cannot be determined by the latest Expiration Date, the contract will resolve to No. Each temperature range listed for this event is mutually exclusive, and only one contract will resolve to Yes. View the full rules.