After a great deal of testing the results from wttr.in and comparing those with the web interface results of various weather reporting sites, I can say definitively, wttr.in is useless.
So now I have to find a way to actually get a reponse from openweathermap.
I have been following you thread, I too live in a small AUS country town and had similar problems with getting weather info.
BoM data is available via anonomous FTP server. Current conditions are json files I download and strip out what I want. Weather warnins are via RSS. Rain radar and synoptic maps are also available. Forcast I get from Meteoblue. I display this all via conky. I can send you a screen grab of my desktop, and if this is what your after, I can send the conky files I use. All you need to do is modify addresses and layout.
I found kweather, which seems to be the KDE Plasma version of Weather, it’s also in the official repositories, so I uninstalled Weather and installed KWeather.
So after all this I have what appears to be an unnecessary openweathermaps API key.