Download ARS Weather System for Time of Day FREE Unity. 

Requires Time of Day – Dynamic SkyDome. 

Does not require Unity Pro. 

The ARS Weather System is a weather system add-on for the excellent dynamic skydome system Time of Day by Mod Monkeys.

The ARS Weather System allows for drag-and-drop functionality and highly-configurable weather effects including Thunder, Lightning, Rain, Fog, and Dust. Lightning is fully procedural.