An approaching cold front will bring big changes to the weather in the next few hours. The NW portion of Oklahoma has already experienced the switch to colder weather while I'm enjoying a temp of 73 degrees with my windows open and my grill fired up. It looks like this will only last another few hours for the Tulsa area.
As for precip with this system, I don't see much of a chance for anything significant. It looks at best like we might get a few light rounds of various frozen precip over the course of the week. Of course, now that I've said that, it will probably snow three feet.