Parts required:
Xiao esp32c3 (or any substitute)
BMP280
Some cables
An accumulator (the bigger the better and your esp gotta support it)
A case you can use the one attached or make your own
Attach the bmp280 cables to the esp i2c port (if using a custom one code may require changes)
Attach the accumulator to the esp (if it supports it)
Put it all in a case
Put it outside and watch it take temps
Change the i2c port if you used a custom one
Change the wifi ssid and password to your wifi
Change the nodename country and code