Weather Forecast: Plug-in only 1 TLB

Usually I don't recommend use two toolbars with the same toolbar folder. There are possible problems with plugins. You can make a copy of the toolbar folder and select the new folder for the second toolbar. Add toolbar folder in TLB Settings->Options->Toolbars then right-click any toolbar, select "Switch toolbar" and click the created toolbar.

Also you have to delete the Weather Forecast plugin on one of the toolbars and create it again. This will prevent the conflict of two plugins.