Highest temperature in San Francisco on September 27? - 68 to 69
Prediction market on polymarket_us. Will the highest temperature recorded at San Francisco International Airport (KSFO) in San Francisco for 2026-09-27 as reported by the National Weather Service's Climatological Report (Daily) be between 68F and 69F? Outcome verified from NWS Climatological Report.
Resolves: 9/28/2026.