Perhaps not the most exciting, but one of the most useful aspects of an iPhone or iPod touch in my opinion is the built-in functionality to display weather conditions for you local city using the default stock Weather app. iOS has always had a default Weather app from day one, which has remained relatively untouched with every new version of iOS which Apple releases.
One thing that has changed with the introduction of iOS 5 is the ability to add local weather conditions as a widget directly to Notification Center, meaning every user has quick access to it. For those that aren’t using iOS 5 yet, or perhaps just want an alternative way of viewing local weather, the WeatherIcon tweak is a very simple but very effective way of achieving this. WeatherIcon is developed by David Ashman who some of you may be familiar with, and basically alters the Weather application icon to display real-time weather pulled directly from the local settings on the device.
No additional icons are added to the SpringBoard, but WeatherIcon does come with quite a comprehensive set of configurable options through the Settings app that allows the user to choose an app icon to theme, and also; show weather images in the status bar through the use of libstatus. For the more advanced users, the option to enter a new weather code is also available, allowing WeatherIcon to display weather of a different location.
WeatherIcon is one of those free of charge, fun little tweaks that proves to be actually very useful and functional. It can be downloaded free of charge from the ModMyi repository.
Of course, you will need to jailbreak your device to install this tweak. For jailbreaking the latest iOS 5.1 (tethered), follow the instructions posted here to jailbreak using Redsn0w, or here for Sn0wbreeze. For jailbreaking iPhone 4S and iPad 2, you can simply follow our step by step tutorial posted here to jailbreak iOS 5.0.1 using Absinthe on Windows or Mac. Those of you with an iPhone 4, 3GS, iPad 1, and iPod touches can use Redsn0w or Sn0wbreeze to untether jailbreak on iOS 5.0.1.