Weather is only one factor, but it can really affect your travel plans, especially if you're planning an extended stay in Zortman. The hottest months are usually July and August with an average temp of 68°F, while the coldest months are February and January with an average of 22°F. The snowiest months in Zortman are October, April, February, and March, with each month seeing an average of 7 inches of snowfall.