- Will the highest temperature in San Francisco be between 70-71°F on September 5?43¢
- Will the highest temperature in San Francisco be between 72-73°F on September 5?19¢
- Will the highest temperature in San Francisco be 59°F or below on September 5?<1¢
- Will the highest temperature in San Francisco be between 60-61°F on September 5?<1¢
- Will the highest temperature in San Francisco be between 62-63°F on September 5?1¢
- Will the highest temperature in San Francisco be between 64-65°F on September 5?2¢
- Will the highest temperature in San Francisco be between 66-67°F on September 5?5¢
- Will the highest temperature in San Francisco be between 68-69°F on September 5?27¢
- Will the highest temperature in San Francisco be between 74-75°F on September 5?6¢
- Will the highest temperature in San Francisco be between 76-77°F on September 5?1¢
- Will the highest temperature in San Francisco be 78°F or higher on September 5?<1¢
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the San Francisco International Airport Station in degrees Fahrenheit on 5 Sep '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=ksfo This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button. If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source. In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket. To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F. This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Forecast models from the National Weather Service and other sources project a high near 67–69°F for San Francisco on September 5, aligning with the market’s leading 68–71°F bins. Persistent onshore westerly flow and a lingering marine layer are expected to limit daytime warming, keeping readings slightly below the long-term September 5 average of 70.1°F. Recent observations show highs in the mid-to-upper 60s amid variable cloud cover and breezy conditions, with limited inland heat advection reaching the coast. Traders appear to weigh this consensus against the possibility of modest clearing that could push readings into the low 70s, while the low probability assigned to 74°F+ reflects the unlikelihood of significant offshore warming or Diablo wind influence this early in the month. Updated NWS guidance and afternoon observations tomorrow will refine resolution.