Yeah that's why I asked, you're going to need another 4 weeks min I'd say so hopefully the weather will cooperate for you. If they're somewhat sheltered, don't be too concerned about the first frost. I've let them go past a couple of frosts, if the area they're growing is protected from wind and rain a bit they can handle minor frosts.
The cold nights works both ways, they can cause issues with mould and PM but also tend to get them to finish faster as they realize there's not much time left. Always a juggle and tense towards the end with outdoor up here.