1. A method for predicting the range of temperatures tolerated by a component, a piece of equipment or a structure of a vehicle comprising the following steps: measuring and/or estimating a plurality of extrinsic parameters relating to the climatic conditions and encountered by the vehicle, determining, for said piece of equipment, component or structure, a temperature probability spectrum as a function of the plurality of extrinsic parameters measured and/or estimated during a determined period of operation of the vehicle, method in which the prediction of the range of temperatures is made over the full range of operation of the vehicle is a function of a specific combination of extrinsic parameters, according to the probability of occurrence thereof, for each piece of equipment, component, structure, by taking into account the possible combinations and by setting aside the unlikely combinations.