it might get close to 0 for the next few overnights as the "polar air" falls. this is the wimpiest polar vortex in the history of polar vortices. we're not even going to see a frost, let alone a freeze.
but then it's going to rebound back to 15ish with overnights around 10 - in late november. it's been an incremental decrease from summer to fall, but no crash towards winter yet.
i wouldn't get to planting pineapples here yet but if this lasts much longer some serious questions about growing season are going to have to come up, and i'm going to be in favour of tearing down these stupid manufacturing centres and going back to the land instead.