If your hair looks like you've just been electrocuted, you could try a couple things. For one, you should skip towel drying your hair, which only makes the problem worse by roughing up those hair cuticles.
Another helpful tip would be to switch your rinse out type of a hair conditioner to a leave-in variety. However, you don't have to buy anything new. Just use less of your normal hair conditioner and leave in. This mild coating on your hair helps it from absorbing moisture from humidity.