Planning for the weather is a good way to make your trip to Kalispell relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 16°C, while the coldest months are February and January, with an average of -5°C. The snowiest months in Kalispell are January, December, February and March, with each month seeing an average of 26 cm of snowfall.