When Clair gets back on dry land after falling in the water numerous times her hair looks wet but her clothes are bone dry.
During the car chase at the beginning of the movie it's dry in most of the chase scene then during the crash it's snowing or raining and then after the crash it's dry again.
According to The International Wolf Center, and several other reputable sources, wolves are afraid of humans and will avoid them whenever possible. The likelihood of a pack of roving wolves randomly attacking humans is next to zero.