Weather can make or break a roadtrip, so we've gathered some data about year-round temperatures in Timber Lake to help you plan yours. The hottest months are usually July and August with an average temp of 71°F, while the coldest months are January and February with an average of 22°F. The snowiest months in Timber Lake are April, March, December, and October, with each month seeing an average of 6 inches of snowfall.