Numerous iOS 8 jailbreak tweaks can improve your Apple iDevice experience, make it better, faster and more interesting. Users who like to check on their iPhone Weather app once in a while to know current weather condition for the particular location can add iPhone Weather widget to Reachability view which is supported by models 6 and 6 Plus.
There is a simple app called ReachWeather which does what you wish to do and displays Weather in iPhone Reachability view. This view is present only on the newest iOS smartphones and it has one empty space where you are able to insert Weather widget. But all these options are possible when you jailbreak iPhone 6 iOS 8.1.1 or 8.1.2. How nice is it to find Weather information while being in a different application? It is very comfortable and simple, as you will see the weather condition and temperature in the location of your choice. The widget will also show some extra data, including pressure and humidity, when you swipe to the left after choosing Reachability view.
Since ReachWeather Cydia tweak is free to download anyone who has used iPhone 6 TaiG jailbreak or Pangu can install it. The tool comes with its own pane where you can adjust the settings: enable / disable this application, choose Fahrenheit or Celsius, select your location etc.
Each time you will invoke Reachability you will find Weather information. Note that the tweak works inside apps only and you cannot enable it from Home screen.
You can also learn how to access all applications from iPhone Lock Screen at once and clone iOS 8 alarm with ease.