Weather will likely play an important role when you plan your trip to Villers-le-Lac, and keep in mind that cheaper options are usually available when the weather isn't as good. 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 34°F. The rainiest months in Villers-le-Lac are June, May, December, and July, with each month seeing an average of 7 inches of rainfall.