A method, system, and computer program product, include determining a first region based on a first point, a second point and a third point associated with temperature indication information that represents association relationship between temperature and pressure, the first and second points being associated with a same temperature value and different pressure values, a temperature inversion ending at the first point, and the temperature inversion starting from the third point, determining, within the first region, a second region associated with the temperature inversion, and predicting atmospheric condition based on the first and second regions.