hatch eggs in november no incubator? (chicago)

[chadchicago]

One of my hens was in a separate pen with the rooster. A week ago she got all broody and started sitting on about 5 or 6 of her eggs. I haven't touched her just to see what she would do.

Is it possible that she could incubate and hatch these, even if it is getting chilly at night (35-45 F)?

If the eggs hatch and I don't notice for a few hours (like if they hatch at night), will the chicks stay under her and survive or will they all die?

 

[KellyHM]

She should be able to keep them warm enough to incubate and they should stay under mom once they hatch. I would probably hang a light out there if they hatch though, just in case.