I had opened my solar powered weather station this weekend, here is a pic of some of the guts.
A consideration is power. Are you going to try to use LiPo or something a whole lot better like LiFePo4's. I tried the LiPo route, it works OK. The LiFeP04 route has worked great.
I use an ESP32.
What weather information do you want to collect is another concern. I collect air temperature, humidity, AQI, wind speed, wind direction, and rain fall. I also collect current and voltage of the battery levels.
You'll want to house the project. For the best results the measurement package should be exposed to the weather. I use a Stevenson's Shield to house the BME680. See the structure at the top of the electronic enclosure.