Reporting of Indoor temp & Humidity to weather underground

Is it possible to to get WD to report indoor temp/Humidity to weather underground? I have a WMR89 currently connected to a Windows PC purely to run WD but my main PC is an iMac. At the moment I’m running WD with a underground API. I know some programs allow you to report the indoor temp/humidty but none of them support the WMR89.

WD already sends that data (sends indoor temp/hum to wunderground)

OK I couldn’t find that data on weather underground. i’ll have another look

that is because WU does not show that data anymore with their new look
but maybe they will one day