The weather page uses two public Open-Meteo endpoints: entering a city name calls the Geocoding API and passes the current page language as the language parameter; once a candidate place is chosen, the Forecast API receives only that place's latitude and longitude plus a fixed set of weather fields, timezone=auto and the 7-day forecast parameters. A Traditional Chinese page converts an externally supplied Chinese place name for display when necessary.

1. 01Enter a city keyword and wait for up to 8 geocoding candidates.
2. 02After choosing the right city, read the current temperature, conditions and wind data together with the 7-day forecast.
3. 03Up to 6 recently chosen cities are kept in the current browser; the forecast for one coordinate is cached for about 10 minutes.

• When cities share a name the candidate region has to be confirmed by hand; the geocoding result decides the coordinates used afterwards.
• Open-Meteo does its best to return localised place names for the language; where a translation is missing it may fall back to English or to the local original name.
• Forecast values and update frequency depend on Open-Meteo's data sources and cannot guarantee the precision of a local real-time observation.
• The 10-minute local cache means reopening the page shortly afterwards may not trigger a new request.
• The page notes Open-Meteo's terms for the free service; commercial or high-volume integrations should check its current licence and quota themselves.

The city keyword and the latitude/longitude chosen from it are sent to Open-Meteo. Recent cities and the short-term query cache stay in the current browser. Do not use a precise private address as a city search term; for severe-weather warnings consult your local official channels.