You'll likely spend much of your trip indoors, but if you want to see more of the area, looking at local weather trends is a good idea. The hottest months are usually July and June, with an average temperature of 13°C, while the coldest months are December and January, with an average of -15°C. The snowiest months in Watson Lake are January, November, December and February, with each month seeing an average of 33 cm of snowfall.