Planning for the weather is an important factor for making your trip to Simcoe a success, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 19°C, while the coldest months are February and January, with an average of -2°C. The snowiest months in Simcoe are March, January, February and April, with each month seeing an average of 15 cm of snowfall.