Planning for the weather is a good way to make your trip to Muskegon Heights relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 20°C, while the coldest months are February and January, with an average of -1°C. The snowiest months in Muskegon Heights are January, October, February and March, with each month seeing an average of 30 cm of snowfall.