I ran across this a day or two ago. This is a KickStarter for a DIY/Maker weather station. There are a few different kit versions available. There is an outdoor unit that contains sensors for 8 different weather elements (wind speed/direction, rain, temperature, humidity, etc) and an indoor unit that does temp/humidity. They all transmit on a 433MHz RF signal. There is an Arduino based receiver option as well as a Raspberry Pi + Software Defined Radio receiver option. All open source.
If you are a Weather/RF/Electronics/Computer nerd, you might be interested. Only 3 days left on the KickStarter.