Weather radars are essential components for understanding and predicting weather, however, their performance is increasingly compromised by radio frequency interference (RFI) from a variety of sources. This interference can significantly degrade the quality of radar products, affecting data accuracy and the reliability of weather forecasts. In this paper, a review of the impact of RFI on C-Band weather radars is presented, exploring its prejudicial effects and current techniques for its detection and prediction. The challenges associated with RFI mitigation and the need to develop innovative solutions to ensure the continued reliable operation of these critical systems are discussed.