You'll likely spend much of your trip indoors, but if you're planning to venture beyond the casino, looking at local weather trends is a good idea. The hottest months are usually July and August, with an average temperature of 19°C, while the coldest months are January and February, with an average of -1°C. The snowiest months in Lake Harmony are January, February, December and March, with each month seeing an average of 30 cm of snowfall.