Behind the Forecast
The thinking and the maths behind how the tool is built.
Why We Use Open-Meteo for the Forecast
Most weather APIs want a key, a card, or a tracking SDK. Here's why free, open, key-less Open-Meteo was the right fit.
Read ProductBuilding a Privacy-First Weather Tool
No accounts, no ads, no analytics SDKs, and the bare minimum of data leaving your browser.
ReadWeather Forecast is built on Open-Meteo, a free and open weather API that needs no key, no account and no card — a deliberate choice, since most competing weather APIs gate a 7-day forecast behind a sign-up or bundle it with a tracking SDK. The tool itself runs almost entirely in your browser: your search term or your device's coordinates are sent straight to Open-Meteo for that one request, nothing is logged on an LK Forge server, and there is no advertising or analytics script watching what you look up.
These posts cover the engineering and product decisions behind that approach — why a privacy-first weather tool is possible at all without sacrificing accuracy or update speed, how the interface stays fast without a backend database of its own, and why an open model API can match or beat paid alternatives for a simple current-conditions-and-7-day-outlook use case. If you're more interested in using the forecast than in how it's built, the Articles section covers reading the tool and trusting its numbers instead. Both posts link out to Open-Meteo's own documentation for anyone who wants to see the raw model data behind a given reading.