Setting up a Weather Dashboard is a common project on the Raspberry Pi. There are many ways to accomplish this.
I have recently found a very nice project that makes it very simple to display detailed weather information.
The setup allows for tons of configuration and is also very simple to customize since it is just HTML/JS/CSS.
Here is an example that I have setup to demonstrate.
Pi Lab's Current Weather Conditions
If you are looking to setup a Weather Dashboard this project is definitely worth a look.
I have updated to use the OpenWeatherMap API since Dark Sky has closed. Learn more