Peek the next element in STL container

is it possible to peek next element in a container which the iterator currently points to without changing the iterator?

For example in std::set,

int myArray[]= {1,2,3,4};
set <int> mySet(myArray, myArray+4);
set <int>::iterator iter = mySet.begin();

//peek the next element in set without changing iterator.

mySet.erase(iter); //erase the element if next element is n+1