Here is a five minute bar chart of today's e-mini action. I think the market just put in a selling climax (red arrows) at midpoint support (purple dotted line). If I'm right then tomorrow's range will be about 25 points with its low near 792 and its high near 817 (blue rectangle).
Weakness below 790 on increasing volume would mean that I was faked out by the move above the 800 level and that the short term trend is indeed downward. Failing that, however, I am expecting a bullish day tomorrow.