Highest temperature in Chicago on September 7? - 78 to 79

Prediction market on polymarket_us. Will the highest temperature recorded at Chicago Midway Airport (KMDW) in Chicago for 2026-09-07 as reported by the National Weather Service's Climatological Report (Daily) be between 78F and 79F? Outcome verified from NWS Climatological Report.

Resolves: 9/8/2026.