Taking into account the local weather in Dunbeacon is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually July and August with an average temp of 57°F, while the coldest months are March and February with an average of 45°F. The rainiest months in Dunbeacon are December, November, October, and January, with each month seeing an average of 7 inches of rainfall.