Highest temperature in San Francisco on September 17? - 73 to 74

Prediction market on polymarket_us. Will the highest temperature recorded at San Francisco International Airport (KSFO) in San Francisco for 2026-09-17 as reported by the National Weather Service's Climatological Report (Daily) be between 73F and 74F? Outcome verified from NWS Climatological Report.

Resolves: 9/18/2026.