This is a TerraFirmaCraft Mod. It will not work without that mod installed.
Overview
Every time I have to hit F3 to check the temperature, I feel like I am pulling a digital thermometer out of thin air.
So I made this mod to display the ambient temperature and rainlevel in a line of text at the top left-hand side of the screen.
The text is written without any numbers, so you might get something like:
"The air feels cold and dry"
or
"The air feels nice"