This weekend will be the busiest of the season. If you are wanting to do a haunted house, consider going on Thursday or Sunday (if the haunt is open on those days).
There is currently the potential for rain this coming weekend. This can cause outdoor haunts (Sleepy Hollow, Haunted Woods, Haunted Forest, Trail of Terror, Tormented Souls, etc.) to not be open. If you want to see them, go on the first day you can (Thursday, if they are open) just in case they get rained out over the weekend.
Plan ahead. Have some great Halloween fun this weekend!