chalk question

This is probably a stupid question. But I keep my chalk and shoes in my car, cause I often go to the gym after work. But I'm wondering, can the chalk absorb moisture from the air? Right now it's not to bad humidity wise. But I live in TN, and in the summer months it's humid as all get out.

https://nox.tips/

I wouldn't worry about the chalk, chalks gunna do what chalks gunna do but keeping your shoes in the car is really bad.  I am all to guilty of doing it myself.  The high temps created in the car can cause serious delamination issues.