I am developing an iPhone app based on weather updates. I am looking for an API having the following things:
temperature
Rainfall
UV index
Wind speed
Humidity
Visibility
Pressure
Snowfall
Heat Index
Radiation index
Dew point
Sunrise
Sunset
Pollen
Air quality
Flu activity

It will be really helpful if anyone can get me the info about the same. Also can anyone tell me if wunderground.com API provides all the info I need?

Thanks and regards
Sandipan

http://lmgtfy.com/?q=wunderground

I'll be happy to build your app for you as well, if you'd like.