Recently I’ve been using SwitchDoc Labs – WeatherRack ( http://amzn.to/1jbJpqz )and WeatherPiArduino board ( http://amzn.to/1LnPU0b ) A decent device with all the necessary sensors - Wind Speed / Wind Direction / Rainfall / Temp. It is a super good starts kit for any HA/Weather enthusiast. Also comes with open source software for Arduino and Raspberry Pi which makes interfacing much easier. Been under $100 is another plus.
I also own an AcuRite weather station (actually I reviewed some their models http://www.nwclimate.org/reviews/comparison-digital-acurite-weather-stations/) which I use for my Weather underground page.
The next one I am buying is the Davis Vantage Pro2.