About Badlands Weather
Badlands National Park's climate is unpredictable and covers an enormous range of temperatures. The summers are hot and dry with occasional violent thunderstorms, especially later in the summer. Winters are very cold with infrequent snowfall. High winds are common any time of the year, as are sudden weather changes.
Visitation Seasons

The spring is generally a pleasant time to visit the park. Daytime temperatures are cool early in the season and warm later on. The night remains quite cold in general.

The summer brings warm temperatures, often climbing into the uncomfortably hot range. It is dry except for occasional violent thunderstorms. Although summer sees the heaviest crowds, it is not the best time to visit.

The fall is perhaps the best time to visit Badlands. The crowds are fewer and temperatures are usually pleasantly warm, with little precipitation.

The winter is the quite time at Badlands. Temperatures are very cold, often dropping well below zero. Road closures are infrequent however, as the winter is very dry and snow is uncommon. As a result, visitation is possible in the winter for those well prepared for the harsh conditions.