Summer "Suit"

I sometimes wonder why I live in a place that had a high of 112 this week.  Don't worry, I'll remember again in the winter.  On those days the need to dress up for work/church/interviews just makes me want to cry when I look at my black suit.  I'm trying to find some nice alternatives that won't make my internal organs when I go outside.

Dress: Buffalo Exchange, $12, Cardigan and Cami: Shade, Shoes: Target, $3.24, Belt: Thrifted