Getting notified on my apple watch

Hey Champs!

I want to create and action\case which when I click a button on my Apple Watch (it can be anytime in random times) i get notified with the current temperature in my kid’s room.
since the watch is always on me the my iPhone doesn’t, say in the middle of the night while I’m in my bed, I want to make sure that it is not too cold or too hot in there. I placed already 2 ZigBee sensors in there and I’d like to get the average temp form both.