Hey Chris, Typically it is best to cut when dry. You will not harm the lawn if it is a 1 off cut when it is wet. It will make a little bit more of a mess and can leave more tire marks if the ground is soggy. While one wet cut won't be detrimental, Continued wet cuts can lead to a packed lawn that will lead to more fungus growth. We hope this helps!
My understanding is that you should wait until it's dry. It will mat up and clump and make brown spots.
Thanks! Your answer is awaiting moderation.