How can I change the temperature unit in Lollipop's lock screen? Today, Lollipop became available for my Samsung S4 and I upgraded. Since then, the lock screen shows the current temperature:




As you can see, it shows "61 °F". Since I am located in Continental Europe, I prefer Celsius.

How can I fix that? As you can see in the others screenshots (lock screen configuration), "Additional Information" is "On" and greyed out, and accessing the "lock screen widgets" menu item only lets me configure the personal message, nothing else.

I do use a third-party weather app (Weather &amp; Clock Widget), but I don't think this is related, since (a) the third-party app does not contain a lock screen widget and (b) the app is set to Celsius.

I've found someone on the Internet with the same problem, but I haven't found a solution yet.
First, in order to enable/disable the widget altogether, go to

Settings > My Device > Lock Screen > Lock Screen Widgets > Clock or Personal Message

and select Clock. This activates the following menu:

Settings > My Device > Lock Screen > Additional Information

That enables you to select whether to display a weather and/or pedometer widget on the lock screen. On the weather widget description I read:

The data will be taken from the weather widget and shown while the device is connected to the network

So, obviously, the units etc come from the original weather widget that comes with lollipop. What I did to correct the units is:

Add the weather widget to a spot on the home screen. Enable your GPS, let it find our where you are and fetch weather data. Tap on that widget, and the first item on its settings is the units. 

However: although the temperature on the lock screen weather widget appears in C, it says it's F (eg instead of 10C it reads 10F). Probably one of those loose ends that will be taken care of in the next updates.

Hope this helps. It took me ages to find out how it's done.