Combining multiple weather APIs turned into a maintenance nightmare for our team because every provider formats JSON slightly differently and updates their schemas without warning. Sticking to a single reliable provider simplified our error handling and caching layer immensely. Unless you are building an aviation or extreme weather app, hyper-niche data streams usually aren't worth the extra overhead. For simple web projects, using ready-made tools like https://billing.meteoprog.com/meteoprog-weather-widget saves tons of frontend dev time. My main tip is to build a solid fallback cache regardless of what route you take.