How is a weather forecasting website like weather.com built?

Can somebody please explain the technology stack behind it? And how it is implemented with a high level architecture diagram (if possible)?

I would like to understand how it functions, and how can they monetise the website, and I may not know all the technology behind it, but I want to gain a very deep understanding of it for academic reasons and also to satisfy my intellectual curiosity.

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Regards,

Bengalurean