Elevations in the Park range from 700 feet above sea level to over 8,000, providing a wide range of climatic conditions, that follow the four seasons.
Be prepared for very warm weather in the summer months, in particular in the river valleys. The spring and fall are moderate and comfortable. Winter conditions can be severe in the higher elevations, with snow and ice making travel difficult and dangerous.
Did You Know?
The Nez Perce made hunting bows from the horn of the Big Horn Sheep, an animal that is native to their homeland.