And then when people start complaining that it is raining inside buildings like they complain about light inside buildings then what?
Agree. And then the comments will be about how the rain or snow need to effect coasters and ride performance, or that rain should form puddles or snow should coat everything, or that there should be seasons so that the trees lose their leaves so they are bare when it snows or flowers should die back from the cold, or that there needs to be ice on water, then asking for the peeps to be dressed in warmer clothes, and if they have umbrellas then they should have rain ponchos, then the janitors should need to shovel the paths or peeps will slip and fall, and all the park lights should come on when it's raining...and those lights should reflect on all the wet surfaces...the list could go on and on.
Sure, weather would be neat to see. I'd love it myself. But I understand completely why they won't add it, it's not as simple to add as some might think it is. Personally I'll take them working on additional rides and bug fixes long before adding weather. Maybe a future version of the game will have it, who knows?