Highest temperature in San Francisco on October 4? - 89 to 90
Prediction market on polymarket_us. Will the highest temperature recorded at San Francisco International Airport (KSFO) in San Francisco for 2026-10-04 as reported by the National Weather Service's Climatological Report (Daily) be between 89F and 90F? Outcome verified from NWS Climatological Report.
Resolves: 10/5/2026.