DIY weather stations are a cool way to monitor the weather in your area. Instructables user kkingsbury shows off how you can build your own, powered by a Raspberry Pi.
Kkinsbury's build uses numerous sensors and gauges to measure the weather in all sorts of ways including temperature, rain, wind direction, humidity, and pressure. It then displays all that data on a self-hosted web site you can check in on any time you want.
As you'd expect, it's a fairly complex build, but pretty cool nonetheless. Head over to Instructables for the full guide.
Complete DIY Raspberry Pi Weather Station with Software [Instructables]