It's 90 degrees. Humid. Cloudy. Scattered showers. The only outfit that makes sense is a tank top and a rain jacket.
At least in my opinion... I suppose you could carry an umbrella or something... But if the sun suddenly comes out, whose over prepared now!?!
A lightweight jacket though. Paper thin, like this one from Uniqlo. You can push the sleeves up or shed it easily and not be weighed down.
I have two key style tricks in the Summer:
1) Either wear lightweight layers or
2) add texture (it will give your look dimension without extra layers- think basic tee with patterned shorts)
This is an example of #1, obviously. And this is an example of #2.
The sun did come out, and so did my shoulders!! Mother Nature can't play games with my heart. <3