Weather will likely play an important role when you plan your trip to Kenny Lake, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and June with an average temp of 53°F, while the coldest months are January and December with an average of 6°F. The snowiest months in Kenny Lake are December, January, November, and October, with each month seeing an average of 26 inches of snowfall.