Are you volatile? Not in the explosive sense of the word, but more in the common (in physics) sense of "ready to evaporate or change state"? Even if you aren't volatile, you might want to be ready for some volitility today. After sort of an easy day yesterday, the weather will go from hot and humid to stormy and back again multiple times during the day tomorrow. Expect that weather to reflect on people that aren't prepared for it. Some will be drenched in sweat while others are drenched by storms. Their lack of preparation might make them a bit volatile in the explosive sense. You however will have the umbrella and the sunglasses and something light and breezy to wear. Any change of state will be something for which you are prepared. Happy humpday, friend.