The Proton Exchange Membrane Fuel cell (PEMFC) is an electrochemical engine that converts the chemical energy of hydrogen into electrical energy. It receives hydrogen at anode and oxygen at the cathode side, due to chemical reaction at electrodes electronic current, water, and heat are produced. Heat produced causes problem for current produced, cell performance and may lead to a phase change of water produced. Water produced causes flooding at electrodes and membrane which requires a specific amount of water only. This study uses Mat lab to analyze the impact of temperature on different parameters which have a significant effect on heat and mass flow. This study shows the performance of Proton Exchange Membrane fuel cell reduces with increase in temperature significantly during operation of the cell. Proton Exchange Membrane fuel cell is suitable for transport, automobile, and other applications.