I have ordered an Ultrasonic Anemometer, as I do not want more moving parts than necessary. Cheaper than built - and faster

Precipitation will be after the weight system with a solenoid valve for emptying, and a heating system for periods of snow.
Temp. and hum. are in a sun shield, and now looking for a fan to ensure air flow. Moving part yes

My measuring stations will be spread throughout the house and outside.
Wind measurement, Precipitation, temperatures and humidity inside and outside.
My idea is that all measurements should be "visible" from any other station.
For example, there could be a station in the living room that, in addition to measuring temp. and humidity, can display data from e.g. anemometer, and give an alarm if there is a fault in the freezer or refrigerator, etc.
When it is finished there will be more than 10 stations. ( A station is measuring, displaying, or both ) - May be a repeater??
It is the communication between all devices that causes headaches.
The entire house is covered by WiFi, so every station can in principle see each other that way.
If I want to use Now-Cast, should each station also act as a repeater in terms of coverage? - Then I am not dependent on WiFi. - How should it be controlled? (Meny have to be reprogrammed every time a new station is added)
If each station acts as a server that makes data available on request, the system can easily be expanded as needed, but how do I do it relatively easily.
Finally a Windows-PC is used for data collection and displaying of weather data.
Thanks in advance for any suggestions.
/Richo