Use APKPure App
Get CalenGoo Weather old version APK for Android
Allows you to use commercial weather sources in CalenGoo
Using this app you can subscribe to commercial weather forecasts instead of using the free OpenWeatherMap.org service. Commercial weather forecasts are often more accurate. Currently DarkSky is supported which offers an hourly forecast for the next seven days. You can try it for free for a few days before you have to pay for the subscription (currently about $1/year).