Reading a forecast honestly
A percentage next to a rain icon is the probability that measurable precipitation falls somewhere in that area during that hour — not the share of the hour it will rain for, and not how heavy it will be. Thirty percent across six hours is a different day from thirty percent in one.
The feels-like figure matters more than the temperature for deciding what to wear. It folds in humidity, which limits how well sweat evaporates, and wind, which strips warmth away — so the same 8°C can sit anywhere from comfortable to genuinely cold depending on the other two.
The one tool here that talks to a server
ToolsBay is built on the premise that your files never leave your device, and every converter and formatter on the site holds to it. This page is the exception, and it is labelled as such: a forecast is measured by instruments and computed on supercomputers, so there is nothing to run locally. The only things this page sends to Open-Meteo are the place name you type and, to fetch its forecast, that place’s coordinates, along with the IP address any web request carries.