Taking into account the local weather in Erhard is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 67°F, while the coldest months are January and February with an average of 16°F. The snowiest months in Erhard are April, March, January, and December, with each month seeing an average of 9 inches of snowfall.