Event organizers around the country have planned festivals in August, September, and October to take advantage of the beautiful weather and your desire to continue the summer party. The most popular festivals celebrate fall or the harvest. There are so many fall and harvest festivals in communities across the United States that I’m hesitant to post the list for fear that you will attempt to attend them all! Ha. Not really. But I do think that you will have to be selective about what festivals you decide to attend. You should consider attending an Oktoberfest. Below you’ll find fall festivals in September and October. And there’s specialty harvest festivals below for people only interested in beer festivals or pumpkin festivals, for example.