Are you looking for a DIY outdoor Wi-Fi weather station? Let's check this LaskaKit Weather Station kit which you may build your own outdoor weather station moreover with Wi-Fi connectivity. We prepared complete kit which contains radiation shield, enclosure, holder of shield and our development board called LaskaKit Weather Station Mini, which you may easily program it in Arduino.
You find the detailed tutorial how to build the Arduino outdoor weather station with Wi-Fi connectivity on the product page.
Link to Weather Station kit https://www.laskarduino.cz/laskakit-meteo-mini-meteostanice/