The World Weather Online Node.js SDK by Rohit Hazra interacts unofficially with the API to access weather predictions. Installation and usage available. Methods include Search, Local Weather, Time Zone, Ski Weather, Historical Weather, and Marine Weather APIs.
Forecast, the team that created the acclaimed iOS weather app Dark Sky, has created an API that brings its gorgeous weather data and display into any platform. As Forecast put it, they wanted to transcend their work with Dark Sky.