What is the best time to visit Hillsboro?

The best time to visit Hillsboro is between July and September, when the temperatures are warm and the chance of rainfall is slim. The rest of the year gets cold and rainy, and while spring and fall do get some pleasant days, it’s hard to gauge when they will be. While the area doesn’t get much snow, freezing rain is a major issue that can lead to dangerously slick roads.