@theusu5k You can change the language of the calendar via the main configuration. Check with the configuration documentation for details. This will also change the language for any module that supports it (including weather). @broberg has the right idea for the news feeds. Find the feed for the language you want and then replace the feed in the module’s configuration in config.js.
The default weathermodule is pretty good. If you wish more features, check out the Wunderground module. Both of these will let you set a location for the weather forecast.