Funny enough, Google is being sued in the EU right now by commercial weather service providers precisely because Google is showing their own weather results at the top of any other possible search result, which they consider unfair competition. Recent EU legislation restricts market leaders from using their near monopolistic position to gatekeep other content.

https://www.heise.de/news/Wetter-com-klagt-gegen-Google-9304318.html

So I doubt this feature will be pushed further right now.