Sunshine App Turns Everyone into a Roving Weather Reporter
wired.com
wired.com
So no. This was one of the really cool things predicted, if not explicitly mentioned, when Apple announced new iPhones would have a barometer; hyper-local readings can only improve weather information, which is sorely needed. Admittedly this isn't the first app to do this, but the idea is huge. The concept that everyone could be constantly making weather predictions better and more accurate for everybody is a big deal.
We've come a long way since using metar data you grabbed from your nearest airport via IRC.
Weather Underground has thousands of crowdsourced weather stations scattered all over the world with lots of sensors, including barometers, anemometers, hygrometers, rain-gauges, etc.