OpenWeather is described as '- free weather data and forecast API.
We provide quickly updated current weather and forecast for any location due to unique algorithms of weather calculation' and is a weather forecast tool in the development category. There are more than 50 alternatives to OpenWeather for a variety of platforms, including Android, iPhone, iPad, Web-based and Android Tablet apps. The best OpenWeather alternative is Breezy Weather, which is both free and Open Source. Other great apps like OpenWeather are Bura, Geometric Weather, WeatherMaster and Windy.