Delete the Weather Channel app from your device from the Control Panel's Add/Remove Programs feature under Windows 7 or from your Start Screen under Windows 8. In addition, you can also remove the app from a mobile device by using your phone or tablet's built-in uninstall feature.
Windows 7
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Quit the program and open the Start menu. Select Control Panel and double-click the Add/Remove Programs icon. Select The Weather Channel from the list of installed programs and click the Change/Remove button to uninstall the application.
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Windows 8
Open the Start Screen and right-click the The Weather Channel tile. Select Uninstall from the contextual menu and click *Uninstall in the confirmation dialog box to finish removing the app from your computer.
Mobile Devices
To remove the application from an Android device, open the Settings app and select Apps. Tap The Weather Channel and select Uninstall.
From an iOS device such as an iPhone or an iPad, long-press the app's icon in your Home screen until the icons on your screen start shaking. Tap the X at the top-left of the app's icon to delete it from your device. Press Delete to finish removing the app.
On a Windows Phone 8 device, locate the Weather Channel app from the All Apps view, then long-press the icon and select Uninstall from the context menu.