Open-Meteo vs US Weather
Same instrument, two spec sheets — measured, not claimed.
Open-Meteo vs US Weather: common questions
Which is more reliable, Open-Meteo or US Weather?
On our scheduled checks, US Weather leads on measured uptime — Open-Meteo at —% versus US Weather at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do Open-Meteo and US Weather need an API key?
Neither needs a paid key — Open-Meteo is callable with no signup, and US Weather is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Open-Meteo and US Weather from the browser?
Yes — both Open-Meteo and US Weather send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Open-Meteo and US Weather free for commercial use?
Open-Meteo is personal/non-commercial only, and US Weather allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.