Weather conditions have a great impact on highway safety. GIS data and meteorological data needed for highway meteorological services are analyzed and processed. Using the interpolation algorithm and meteorological elements, including visibility, precipitation, temperature, and wind velocity, are processed spatially, and the whole data processing flow are sorted. The techniques of projecting meteorological factors on the high speed sections are studied by means of the GIS based spatial analysis. The results of the operation are stored in a database in JSON for traffic meteorological services. The application of the meteorological service technology is discussed, and traffic weather forecast guidance products are produced. The application to meteorological navigation in transportation is also attempted, which improves the effectiveness of traffic meteorological services.