Can I make the weather widget depend on wifi rather than location? I upgraded from Galaxy Mega to Galaxy S6 Edge +.

The weather widget seems to depend on me turning on 'location' (which I'm guessing is the renaming of GPS). In Mega, I need only Wifi. Now, I have to turn on location.

Is there a way I can still use the weather widget to see temperature without turning location? If not, what can I use to see temperature and time using a widget way without turning on location?
Check Settings->Privacy and Security->Location->Search method->Select WiFi and mobile networks.
It's there, just named differently because you don't need GPS for location and may choose to disable that feature completely.