The rhythm's pretty easy, just play along with the song and you'll get it <3 
G D Em C
It’s pouring rain at 4 a.m. 
G
Em DC You cut me open
G And you fill me with this hope
DC When you know this whole thing’s hopeless
Em DC And I’m hopelessly hoping
G That you will see
DC What lies inside of me
 
G D Em C
It’s pouring rain at 4 a.m.