I use weather underground for my personal server (developer accounts are free up to 500 calls a day...). We used them for work to get weather data for lots of

I use weather underground for my personal server (developer accounts are free up to 500 calls a day...). We used them for work to get weather data for lots of locations hourly ("drizzle" plan). Very reliable. api: http://www.wunderground.com/weather/api/d/docs http://www.wunderground.com/weather/api/d/docs National weather service, http://weather.gov http://weather.gov is my goto weather forecaster, but at the time I wrote the code, getting hourly data based on lat/long for several thousand locations (some outside the US) was problematic. and XML..