Anything from this point forward is for my bees. So if you are asking about a "crop", then I would suggest perhaps reconsidering your viewpoint.
I think the bees will need every drop of honey they can pack in from any fall flow. Yes, the moisture will help with nectar and as I already had commented, it seems the early goldenrod is actually producing, which in most years, the early varieties do not. But with the moisture we can probably expect a good fall flow, provided the bees can work and the frost does not come too early.
But expecting a crop. Only for those who want to feed all winter... ;)