Stop in for a cup of coffee

That Quick-Crete stuff is like 4 1/2 sack mix .. It will make enough heat to survive .. Be ok for footings .. One thing to remember about concrete .. Once it's set .. The longer you keep the water in it .. The better it cures .. Concrete test cylinders are cured in a tub of water at a specified temp for 28 days to make their design break strengths ..