Is this a disease?

[Jericho324]

Hi,
New poster here. I have been reading and see that most people are very knowledgeable about different diseases. I am attaching a picture of a Sweet 100 with small spots on the lower leaves. These spots are on some other plants as well. I am in the western suburbs of Chicago and the weather has been very wet and cool lately. I set the plants out about 2.5 weeks ago. Any ideas on what this is? And what I can do about it?

TIA