Where can I find free current global gridded weather data? I've found several sources of data that meet some of these criteria, but no site that meets all. For example:
I've found historical gridded weather data, some that's updated daily, but the data is always at least a week old, sometimes years old
The US government provides current gridded weather data, but it's limited to the United States or North America
The government also provides current weather data for airpots, ships, buoys, and automated stations, but this is point/raster data, and the data doesn't form a grid.
You can use openweathermap.org to pull maps and then read the pixels off them, but this seems kludgey and somewhat unfriendly. Plus, openweathermap.org must have a source, and I'd like to go directly to that source.
I've (obviously) read http://opendata.stackexchange.com/questions/10154/ but nothing there is helpful.