I projected yesterday that today will likely be a down day. Usually, in uncertain time, people will not buy knowing that there's a long weekend ahead. This comes from experience.
Although, I did this at a discretionary level only. Looking at the chart today, seeing how the price is moving up slowly after the 10 pts or so decline earlier, it suggests that today would like be a down day. If I am wrong, I probably will be wrong by a max. of 5 pts (price is likely not to go up more than 5 pts, if it does go up). And I have yet to look at volume.