Taking into account the local weather in Rivière-Héva can help you maximize your time at the pool during your trip. The hottest months are usually July and August with an average temp of 60°F, while the coldest months are January and February with an average of 13°F. The snowiest months in Rivière-Héva are January, November, February, and March, with each month seeing an average of 13 inches of snowfall.