That sounds perfect! As long as night temps stay warm (with the high humidity that's likely) most if not all of your orchids will likely benefit from the fresh air and humidity. When it's cold obviously you have to do the best you can with indoor growing, but this time of year take advantage of the benefits of Mother Nature. These are basically tropical creatures!

Forgot to mention that I have about 30 mounted Dendrobium and Angraecoid orchids outdoors too...they are really happy out there!

I have found that when outdoor temperatures are suitable, things just tend to do better that way. Light, air movement, some day-night temperature variation, humidity.