Visiting local bars in Mount Hart is more fun when you know what the weather holds. These temperatures and rainfall averages can help you choose the best time for bar hopping. The hottest months are usually November and October with an average temp of 88°F, while the coldest months are July and August with an average of 78°F. The rainiest months in Mount Hart are January, February, December, and March, with each month seeing an average of 8 inches of rainfall.