Temperature, pressure, humidity, wind — free public data, refreshed hourly, covering every square kilometer of the planet. Open-Meteo serves it over HTTPS without keys, rate limits, or tracking. This page fetches it through a Cloudflare Pages Function, so the browser never hits the upstream directly.
Default reading is pulled from your edge-detected coordinates. Override with any lat/lon.
api.open-meteo.com — free, no key required./research/signal/api/atmosphere → Pages Function → Open-Meteo. Browser never sees the upstream.