I sang this song in college glee club (50 years ago). My fragmented and probably scuffled sequence recollection goes:

River looks black with the shadows on it
Mighty black clouds in the sky above.
Still I aint scared of the rain doggone it.
River and rain are the things I love.

Rain, pour down on me,
I'm happy as I can be.
For I love the rain and I love the river.   
(cant recall this line)

Let the river take the cabin and the flood soak the ground.
I'll build another cabin when the food goes down.

What do I care if the cloud get stormy
What do I care if the rain should fall.
River's my pal,and the rain's my buddy.
(not this line either)