prognosticator
/prɑɡˈnɑstɪˌkeɪtər/
noun
- A person who predicts or forecasts future events, especially based on signs or data.
- Economic prognosticators disagree on whether the market will recover next year.
- Ancient prognosticators used the stars to predict harvests and wars.
- The weather prognosticator warned of heavy snowfall this weekend.