Weather can make or break a roadtrip, so here's some data about year-round temperatures in Antelope to help you plan yours: The hottest months are usually July and August with an average temp of 67°F, while the coldest months are February and January with an average of 18°F. The snowiest months in Antelope are March, October, April, and February, with each month seeing an average of 9 inches of snowfall.