Weather and climate data
Weather radar data, worldwide. Tile server and single radar images.
Global marine weather data from multiple sources in one single API!
7Timer! is a series of web-based meteorological forecast products, mainly derived from the NOAA/NCEP-based numeric weather model, the Global Forecast System (GFS).
APIXU weather and geolocation API provides you with access to get real-time, future and historical data ranging from weather, sports, astronomy, currency and much more for your website or application for any IP address, city, zip or geo point in the world.
Climate Data Online (CDO) provides free access to NCDC's archive of global historical weather and climate data in addition to station history information.
Real-time UV Index Forecast
Weather and weather webcams
MetaWeather is an automated weather data aggregator that takes the weather predictions from various forecasters and calculates the most likely outcome.