KKiT for SharePoint
Free Weather WebPart
The KKiT Weather WebPart provides both current weather and the upcoming forecast utilising the free apixu.com API.
To get started simply signup for a apixu.com API Key and install the application to your SharePoint Application Catalogue.

The WebPart has the following configuration available:
APIXU API Key - Set your APIXU API Key
Weather Location - Set a valid APIXU Location
Units - Choose between Celsius and Fahrenheit
Show Forecast - Show the upcoming forecast
Days - Define how many days 1-5 you would like displayed
Show Region - Show or Hide the region i.e. South Australia
Show Temperatures - Show or Hide the temperatures for the current forecast
Cache Length (Hours) - The WebPart stores a cache to ensure you do not access the API on every page refresh - configure the delay before the next call in hours.
Background Color - Select the background color.
Text Color - Select the text color.
With different settings you can make the web part appear very different for where you need a more minimal approach:

Download the WebPart here.