@linuxdxs you can use this simple module MMM-RemoteTemperature and from your termometer you only send an HTTP POST request.
You choose the udate interval and all the MM, with this module, will update their value when you send the HTTP POST.
I hope this help you.

@cowboysdude yes, of course :-)
It’s better to modify the README.md for not to use a zip code but a Locationkey from accuweather in the config file.
Many thanks