You know your gear best and what you can tolerate.I myself the coldest I ever went out was -4 below with a little wind.I was cold and out of the woodsby about 9 oclock.I was watching the weather last night and Bismark N Dakota was talking about something near -50 below w/ the wind -15 below without. That is foolish not brave. I wish you the best of luck and make the right desicion. Hunting is always supposed to be enjoyable weather we connect or not.

Don't forget the people that could be put in danger having to come and get you if things don't work out like planned.