This SDK can be used to integrate the DOCOMO Environment Sensor API into Java applications. Calls to the Environment Sensor API can be made in order to retrieve hourly updated temperature, precipitation rates, and UV radiation detection from all 47 Japanese prefectures.
A new mapping-related API from WeatherBug has a response type we don't see too often: images. The new service provides radar, temperature and other weather-related data as an overlay for Bing or Google Maps.
Though Google Maps may still be the choice of most developers, Bing continues to be a contender. Microsoft evangelist Chris Pendleton points out a new Weather.com feature and mentions it has used the service since back when it was called Virtual Earth (the switch only happened this June).