Popular weather data site Weather Underground (Wunderground) has a new version of its Weather Underground API and two things are notable: its former XML service is being phased out in favor of JSON. And it has a very clear pricing structure, though there's a free version for non-commercial projects.
Opensnow.com is a snow forecasting site that is designed to provide more than accurate information. Joel Gratz, founder and CEO of OpenSnow, grew up around snow and is passionate about skiing. The service provides customized reports for several locations and offers the worlds first “Ask the Weatherman” section. The OpenSnow API provides access to this wealth of snow knowledge.
World Weather Online, global weather forecast content provider, has added to its already impressive suite of weather APIs: World Weather Ski and Mountain API. World Weather Online content is already incorporated into many websites and apps. Its Ski and Mountain API is directly targeted at those needing ski-specific conditions information. Metrics such as chance of snow, snowfall, precipitation, wind speed, and other conditions specifically targeted at a viewer with plans to head for the slopes are readily available through the new API.