I am terrified to put my plants outside

I live in the Susquahanna Valley and one day we are having breezy dreary weather and then the wind picks up and we have rain and the porch furniture is blown over. My herbs outside are not doing great and my roses have the powedery mildew and copper spot...alas another ongoing battle I have (although they are blooming nicely!

)
Yesterday we had sun, 88 degrees, humid and NO AIR whatsoever...'twas brutal.
Last time I
opened the window in the kitchen for the orchids I got aphids on my buds

I would be feeling truly cursed at this point were it not for my fan luck!
However, I am encouraged to try to put them outside.
/looks worriedly out the window at the cruel outdoors
....and I will report on how that goes.