This is a Weather API Open Source Project

In this Project you can find the REST API implementation in Salesforce APEX and Displaying it on the Lightning Web Development Component

For the API Key follow these steps:-

1. Go to Weather API.
2. Sign up for a Free account.
3. Free Account has 1 million API calls and gives you a personal key.
4. Store this key in a Custom Label in Salesforce.

For the Site to Deploy Add your Salesforce Username in the Comment Provided

Site Link for Reference -

https://accenturecom-4b5-dev-ed.develop.my.salesforce-sites.com/Weather