That's a niche within a niche, I know, but for those using Waybar (https://github.com/Alexays/Waybar/), I've built wttrbar (https://github.com/bjesus/wttrbar/) - it uses Wttr.in to display a nice detailed weather widget in your bar.
EDIT: this is particularly timely because the UK Met Office has recently announced the retirement of the API I was previously using: https://www.metoffice.gov.uk/services/data/datapoint/datapoi...