Weather can make or break a road trip, so we've gathered some data about year-round temperatures in North Eagle Butte to help you plan yours. The hottest months are usually July and August, with an average temperature of 22°C, while the coldest months are January and February, with an average of -4°C. The snowiest months in North Eagle Butte are December, April, March and February, with each month seeing an average of 22 cm of snowfall.