Unless one's happened while I was off, I'm pretty sure that the rain is only a weather thing, not anything for an abiogensis... But I could always be wrong ^^'

There will be no Abiogenesis, unless the Gods have announced one on their website. The closest you'll get to one, is if you get to see one of the Gods in the forest, as they change the weather. (If you go up to them, they usually put on a little show!)