Austin's daily high temperature on April 20 will be determined by official National Weather Service (NWS) records for Austin-Bergstrom International Airport, the reference point for local weather data. The market focuses on a narrow 76-77°F range for the day's maximum temperature. Current market odds of 0% suggest traders view this specific temperature band as highly unlikely given typical April weather patterns in central Texas. Spring temperatures in Austin typically range from the mid-70s to low-80s during mid-April, so hitting exactly 76-77°F would require specific atmospheric conditions. The market resolves at the scheduled end time using the official high temperature recorded by NWS. Odds movements reflect real-time forecast updates and model consensus as the resolution date approaches. This recurring daily temperature market allows participants to express precise views on weather outcomes, useful for short-term meteorological forecasting or weather-dependent business planning.