I am in Ohio,by lake Erie ,in the Sandusky area.I took my plants in last week- end. What is still out I cover at night with a flannel sheet. So far so good.
Sharon

Whip,

They'll be fine under cover but outside - just don't do that when nighttime temps start getting in the 30s (although they can handle those temps if dry). You might start getting some fall colour on them (if you don't have it from summer already).

Sharon,

I dig flannel - they're great sheets when it's freezy-birdy weather outside. Has it frozen yet there?

Jeff,
No, that's why the sheets are on the plants and not me. Heeeeehe
Sharon

I'm in Akron. The plants are on a covered porch. They get good sun from about 3:00 on. If it's not going to rain, I put them on the walkway so they get more sun. Everything else is in, but I'll nervously leave the jades out.

Here they are 4 and 5 feet tall, live year round outdoors where temps remain above 32F and thrive on 12" of rain a year.

I think you are just fine until the high 30s. Just keep them dry in colder weather.