Aeris.js is an open source javascript library for developing rich interactive weather maps and weather widgets. Access the latest release via the Aeris.js GitHub. Today we’re going to walk through the steps on how to create a weather map using Aeris.js. You can see working demos at demo.aerisjs.com. In this tutorial, we walk you through: Embedding the Aeris.js library in our webpage. Signing up for an AerisWeather API account & configuring our API keys. Creating a base map. Adding & manipulating weather tile layers.