I-94 and U.S. Highway 85. Public Transportation Bus transportation via Greyhound is available along I-94. The bus stops in Medora, three blocks from the park entrance. There is no public bus transportation along Highway 85 and to the North Entrance. Train service is available into Williston.
Evenings can be cool.
Annual precipitation is 15 inches. Winters are generally cold. Recommend layers of clothing, especially in spring and fall. Rain gear in spring. Hat for sun protection is needed in summer.