I get the sense from the article that part of the fun was doing this via radio frequencies rather than having to deal with a network.

> At this point, we've connected the Temu weather station to the Internet and the ham radio network. Anyone with an APRS-enabled radio, digipeater, receiver, or just a web browser can see what the temperature and humidity are at my house.

Nearly all off the shelf weather station parts use 433Mhz or similar bands. It’s likely that if you have any preexisting wireless temp sensors, etc that transmit to an indoor display, you can use those with a system like this. I also think that range and battery life is better for these simpler sensors.

links? the closest thing is 10x the price, some are more like $80, some $180