Planning for the weather is an important factor for making your trip to Ponderay a success, especially when you’re splurging. The hottest months are usually July and August with an average temp of 63°F, while the coldest months are February and December with an average of 27°F. The snowiest months in Ponderay are January, February, December, and March, with each month seeing an average of 17 inches of snowfall.