Name: OWM Data Field
Rating: 2.5 (2 reviews)
Author: jm_m_58

A data fieldto display data from Open Weather Maps
Any questions or bugs, please use "Contract Developer" at the right.

You need an APIkey to use the widget. Please see https://openweathermap.org/appid

To set your APIkey for the app, you use App Settings. Here's a basic "How to" for that: https://forums.garmin.com/forum/developers/connect-iq/connect-iq-showcase/115055-how-to-app-settings

This was done as a simple data field so it can be used in any layout. The way it works is data is rotated - Temperature, Humidity, Wind direction and speed, and the timestamp from the data.  

How often it rotates, and which of these you want to see can be configured with App settings, as well as how open it requests a weather update.
You need to have your phone with you, as that's used to get the data. And you need to be using an activity with GPS (so it knows where you are)