Archiving Weather Data

Create an application which periodically fetches weather data from wttr.in's JSON API and saves it in a database. You needn't save all available data, but at the very least, save the current temperature. The application must provide a REST API to query for aggregated values over the saved data in the database, e.g. getting the max/min/avg temperature of the past 48 hours. The application must be runnable using Docker. The image needn't be uploaded to a registry, providing a Dockerfile is sufficient. You may also run provide a docker-compose file to start both your application and the database.