What other free weather APIs are there now?

Domestic weather forecast data mainly come from the National Meteorological Administration and foreign countries (data sources).

Foreign countries are mainly Yahoo (XML format, Google has stopped its own weather API);

Domestic data are provided by the National Meteorological Administration (JSON format).

Yahoo can provide global and very detailed weather data (updated every hour), but it is mainly automatically generated by computers. The National Meteorological Administration, on the other hand, is obtained by experienced experts from all over the country combined with computer comprehensive analysis, which is superior in accuracy. I believe so!