New rain effects have been added, there's now two different types of rain (rain type 1 and rain type 2) the new rain types can be found in the "optional files" folder inside the "weather effects" folder (only one can be used at once). Rain type 1 is a soft rain, and rain type 2 is a more faster heavier rain with wind (rain type 2 is used as the default rain). Rain transitions have been improved and build up in intensity and then slowly begin to lose their intensity for added realism. Rain drops are also now more visible on surfaces. There's no lightning though.