OK I reported here on our Sequim Town blog about Indian Summers before - actually just mentioned it with our Sequim rental reviews recently - and told people who wanted to visit Sequim in fall that September & October are perfect for a vacation later in the season. The weather this fall has proven this more than ever. It has been absolutely gorgeous for days and days. To be honest we did not count the continuous days of blue skies and sunshine from morning till night. Everybody just enjoys the weather with lots outdoor activities, as long as it lasts.
BTW, our hummingbirds do so too. Our hummingbird feeder is busier than ever contributing to a very entertaining breakfast, lunch and dinner.