Here is a handy tool that turns your smartphone into a wind meter. The Vaavud Sleipnir attaches to your smartphone and captures wind speed and direction using two curved blades. The internal sensor records 44,100 measurements per second. The Sleipnir offers accurate wind readings at wind speeds from 2 – 40 m/s.
You will not only be able to capture data on your phone but also see what others are seeing. Your measurements are automatically stored on your smartphone. Costs $60 at this time.