Weather conditions can impact the performance of a radar detector. Rain, fog, and heavy snow can all interfere with the radar signals and cause the detector to provide false alerts or miss real threats. The intensity of precipitation, as well as the frequency and distance of the radar source, will also affect the performance of the detector. Additionally, the type of radar used by law enforcement (such as Ka or K band) and the design of the radar detector can also impact its performance in inclement weather. To ensure the best performance, it is recommended to choose a high-quality radar detector that is designed to work in a variety of weather conditions and to regularly clean the windshield to prevent any interference from buildup on the windshield.