Dungeon Master Tables and Tools for 5e
DungeonMasterTools.github.io
Quick Reference Page stolen from https://github.com/crobi/dnd5e-quickref
Robbed some tables, which I tweaked and cleaned up for my purposes, from http://www.5edmscreen.com
Weather chart taken from here: https://dungeonbot.wordpress.com/2015/01/26/simple-weather-lookup-chart