Weather is not updating currently location

[Slavekk]

Why does the weather don't know a city like Braganca in Portugal, although it knows the much smaller city of Mirranda do Douro in the Braganca district?

Moderator edit: updated subject for clarity

[MarreFitbit]

Hi there @Slavekk, it's nice to see you around! By default, the Weather app shows your current location, which can't be deleted. Add up to 2 additional locations you want to see in the Weather app.

Sync your device with the Fitbit app. It can take a few minutes to see the updated list of locations on your device.

If the weather doesn't update, check the following settings:

• Location services must be turned on for the Fitbit app. For instructions, see How do I allow the Fitbit app to use my phone's GPS? 
• All-day sync must be turned on in the Fitbit app.
• The Fitbit app must remain running in the background on your phone.

If you change locations, sync your device to see your new location in the Weather app.

To change the units used for the temperature in the Weather app:

1. In the Fitbit app, tap the Today tab   > your profile picture > your device image > Apps.
2. Tap the gear icon   next to Weather. You may need to swipe up to find the app.
3. In the Temperature Unit section, tap Units and choose the unit you want to use.
4. Sync your device and then open the Weather app  ​ on your device to see the updated units.

[Slavekk]

You changed the topic to wrong.
I did not ask about the current location, but about the city that I want to add to Weather. I can't add Braganca in Portugal.