Weather · head-to-head
7Timer! vs wttr.in
7Timer! generates numerical weather forecasts from NOAA/NCEP's Global Forecast System across roughly 1.5 million global grid points, refreshed four times daily. Beyond standard meteorological fields (cloud cover, temperature, wind, precipitation), it produces astronomy-specific products like "astro seeing" and atmospheric transparency for stargazing/observation planning, with forecast ranges from 3 days (ASTRO) up to a 9-16 day overview product.
wttr.in returns weather reports as ASCII art directly to curl, wget, or a plain browser request, so there's no client UI to build. It's a standalone open-source Go service with plain-text, colorized ANSI, PNG, and JSON output modes, and needs no signup or API key.
| 7Timer! | wttr.in | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | JSON, XML, PNG | plain text, ANSI, PNG, JSON |
| CORS | no | yes |
| HTTPS | No | Yes |
wttr.in supports CORS, while 7Timer! doesn't — pick wttr.in for direct browser calls.