How Weather app works via WiFi on Enduro2 ?

Garmin-Laurie said:

This allows you to receive weather overlay data, via GPS. Much of this can be accessed without the Smartphone pairing. Here is a link with information for this. Weather Overlay

Interesting, I did not hear yet, that GPS satellites broadcast weather data, and am rather surprised (perhaps even a bit skeptical). Unfortunately, the link you provided points to Garmin's internal support website, and I cannot access it. Could you provide some details, or references for the weather data from GPS without any smartphone paring? The publicly accessible article on Weather Overlays claims the contrary:

Weather overlay data will be retrieved via Bluetooth data connection to a smartphone.

trux

The updates to the weather data, do allow some information to be updated using GPS. This will show precipitation, cloud cover, temperature, and wind speed and direction. 

Thank you for pointing out the link was not working. Here is the corrected link: Weather Overlay information 

Garmin-Laurie said:

The updates to the weather data, do allow some information to be updated using GP

Thanks for the corrected link! Unfortunately, it tells the same as the document I linked in my previous post:

Weather overlay data will be retrieved via Bluetooth data connection to a smartphone.

It only uses GPS to get the location, but unfortunately, no weather data can be retrieved from the GPS satellites, since (to my best knowledge) they do not broadcast any such data:

When you access the weather map, the watch will attempt to connect to GPS in order to accurately display your location.

Back to the original question in the OP:

Egunopor said:

I cannot understand when it refreshes the information and how to force the refresh via WiFi?

If you do not have the watch connected over the BT to the phone, then the data is being transferred over Wi-Fi. Normally, weather data is being requested every 20 minutes. If you want to force the update, you can power the device off, then back on, and syncing it.

I have updated my original verified answer in this thread.