Sweat a lot during workouts.

Why is this? I mean granted I do a lot of drop sets with weights for 45 minutes and move fast between sets but maaan it gets annoying. Then I do hard cardio for 24 minutes after weights and I'm soaked with sweat, especially my head. Wtf? I'm in great shape too. 

Excess sweating is mostly harmless and a normal reaction when the body needs to cool down.  People vary in how much they sweat.  Overweight or out of shape people tend to sweat more.  However night sweating or sudden unusual sweating might be a medical condition that deserves a visit to doctor.

I have this problem too, but medically there is nothing wrong with me. I reduced the intensity and increased the rest, not much, but it helped. It also depends on the temperature in the gym.