I would think that they will be OK until they start to forecast a freeze.
That is what I keep 'thinking'. This is the first time I have 'new' beans this late in the season. And my earlier beans barely produced enough to eat... no canning.
I pulled out all the sweet potato vines yesterday because some of the leaves were darkened by cool temperatures. I dug a couple of hills, but the ground is so hard and compacted by lack of rain it was difficult to lift the sweet potatoes out without them snapping.
I so want you to be correct. Thank you.