Well, I think it is official. The rain is what is causing my cable to go wacky. It was just fine while the weather was hot earlier this week and as soon as we have a day with rain the interference starts up again. At least I'll be able to let the cable company know there's some kind of connection, since most of the time I call them when there is a problem and by the time they come out it is gone.
The last cable guy who was here was also quite helpful in letting me know the best way to call in and get the help I need. First step, ask for a supervisor, the front line phone techs suck.