Taking into account the local weather in Afton is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and July with an average temp of 63°F, while the coldest months are February and January with an average of 26°F. The snowiest months in Afton are February, January, December, and October, with each month seeing an average of 34 inches of snowfall.