Share 'Is it too hot to plant Fall Seeds? (carrots, turnips & beets?)'

So we were going to plant some fall seeds today including carrots (Atomic Red, Tonda di Pargi and some other type), Bull's Blood beets and Shogin Japanese turnips. I'm in St. Louis, MO (Zone 6) and according to the MU Extension planting guide this is the right time to plant and we are planting in our raised garden bed. HOWEVER, starting tomorrow we are going to get another heat wave of temps in t…