Highest temperature in Chicago on October 4? - 69 or below
Prediction market on polymarket_us. Will the highest temperature recorded at Chicago Midway Airport (KMDW) in Chicago for 2026-10-04 as reported by the National Weather Service's Climatological Report (Daily) be less than or equal to 69F? Outcome verified from NWS Climatological Report.
Resolves: 10/5/2026.